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Preliminary Technical Data

UG-1828

Rev. PrC | Page 97 of 338

Figure 92. LO Switching Network

Figure 93. LO Switching Network (Receiver Channels Configured as Observation Receivers for Transmitter Channels)

Note that depending on the application, user has the ability to select best phase noise or best power saving options for better optimization.
The option, best phase noise, only works for LO frequency under 1 GHz.

AUXILIARY SYNTHESIZER

An auxiliary synthesizer is integrated to generate the signals necessary to calibrate the device. This synthesizer uses a single core VCO.
The reference frequency for the auxiliary synthesizer is scaled from the device clock via the reference clock generation system. The output
signal is connected to a switching network and injected into the various circuits to calibrate filter bandwidth corners, or into the receive
signal chain as an offset LO. Calibrations are executed during the initialization sequence at startup. There should be no signal present at
the receiver/observation receiver input during tone calibration time. Calibrations are fully autonomous. During the calibration, the
auxiliary synthesizer is controlled solely by the internal ARM microprocessor and does not require any user interactions. The auxiliary
LO signal is also available as an LO source for the observation receiver mixers.

EXTERNAL LO

The device is provisioned with two external LO ports. These ports are available as a pair of balls and are configured to be input for
external LO signals.
External LO can receive a signal between 60 MHz and 12 GHz through a matched differential impedance of 100 Ω and delivers a
programmable signal between 30 MHz and 6 GHz as the LO for transmitters and receivers in the device. Amplitude must be maintained
between ±6 dBm. For more information refer to External LO Port Impedance Matching Network paragraph.
Singled-ended external LO in is also supported. The matched singled-ended impedance is 50 Ω. On-chip duty cycle correction circuit can
correct limited range of external LO duty cycle error if it is not 50%.
The user can also enable external LO with 1× divider for up to 1 GHz.

Single-Ended vs. Differential External LO

Note the current eval board only supports differential external LO, however user is not restricted to use single-ended LO in their end
system. User must change clocks.ext1LoType and clocks.ext2LoType from 0 to 1. This can be found in the Enum below

enum adi_adrv9001_ExtLoType {
ADI_ADRV9001_EXT_LO_DIFFERENTIAL = 0,
ADI_ADRV9001_EXT_LO_SINGLE_ENDED = 1}

Note only frequencies from 500 MHz to 1000 MHz are supported for single-ended mode. Figure 94 shows the RF LO generation diagram.

RX2

RX2 MUX

RX1

RX1 MUX

TX2

TX2 MUX

TX1

EXT

LO1

RF

LO1

TX1 MUX

RFLO1 MUX

EXT

LO2

RF

LO2

RFLO2 MUX

24159-

076

RX2/ORX2

RX2 MUX

RX1/ORX1

RX1 MUX

TX2

TX2 MUX

TX1

EXT

LO1

RF

LO1

TX1 MUX

RFLO1 MUX

EXT

LO2

RF

LO2

RFLO2 MUX

AUX

LO

24159-

077

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Содержание ADRV9001

Страница 1: ...s family designator assigned to the System Development User Guide UG 1828 for new ADRV9002 ADRV9003 ADRV9004 and upcoming additional family members The ADRV9001 System Development User Guide covers AD...

Страница 2: ...Shutdown Sequence 46 Serial Peripheral Interface SPI 47 SPI Configuration 47 SPI Bus Signals 48 SPI Data Transfer Protocol 48 Timing Diagrams 50 SPI Test 51 Data Interface 52 General Description 52 E...

Страница 3: ...Interframe Power Saving 192 Monitor Mode 194 Digital Predistortion 197 Background 197 ADRV9001 DPD Function 197 ADRV9001 DPD Supported Waveforms 199 DPD with Frequency Hopping FH 199 ADRV9001 DPD Perf...

Страница 4: ...ine Layout 259 Isolation Techniques Used on the ADRV9001 Evaluation Card 266 Power Supply Recommendations 269 Power Management Considerations 269 Power Supply Sequence 269 Power Supply Domain Connecti...

Страница 5: ...E SYSTEM ARCHITECTURE DESCRIPTION SOFTWARE INTEGRATION AND SYSTEM INITIALIZATION AND SHUTDOWN PARAGRAPHS AS WELL AS HAL INTERFACE DEFINITION APPENDIX FOR MORE INFORMATION GO TO PCB LAYOUT RECOMMENDATI...

Страница 6: ...TECTORS DATA PORT CMOS SSI OR LVDS SSI DATA PORT CMOS SSI OR LVDS SSI LO1 GENERATOR RF VCO1 SYNTHESIZER DEV_CLK XTAL OSCILLATOR RF VCO2 SYNTHESIZER LO2 GENERATOR n ADVANCED FEATURES FREQUENCY HOPPING...

Страница 7: ...performance 1 8 V analog domain is used to optimize transmitter and auxiliary converter performance The digital processing blocks are supplied by a 1 0V source In addition a 1 8 V supply is used to su...

Страница 8: ...andom manner dictated by the user Selecting the next frequency to hop to is accomplished by asserting a frequency index word onto the GPIO bus Alternatively the API can be used to select the next freq...

Страница 9: ...utonomously poll a region of the spectrum for the presence of a signal while in a low power state In this mode the chip continuously cycles through sleep detect sleep states controlled by an internal...

Страница 10: ...to implement MIMO or diversity in their system The ADRV9001 internal AGC can be used to autonomously monitor and set appropriate gain levels for Rx signal chains For non time critical FDD type applica...

Страница 11: ...re are no signals present at the Rx input external LNA should be disabled and appropriate termination should be present at LNA output to avoid reflections of Rx calibration tones The maximum input sig...

Страница 12: ...Y MIMO RF RECEPTION BAND B DIVERSITY MIMO AND Tx INIT CALIBRATIONS RF TRANSMISSION BAND A AND BAND B DIVERSITY MIMO RF TRANSMISSION BAND A AND BAND B DIVERSITY MIMO RF I O Rx1A Rx1B Rx2A Rx2B Tx1 Tx2...

Страница 13: ...depending of RF matching used on the RF ports user 2nd LO harmonic can be as high as 50 dBc and 3rd harmonic can be as high as 9 dBc Therefore the RF filtering on the Rx and Tx path must ensure that s...

Страница 14: ...x can be done by toggling control lines ADRV9001 can control external Rx Tx switch using its analog GPIOs as well as provide power amplifier bias voltage by utilizing AuxDAC outputs SPI RESET DEV_CLKL...

Страница 15: ...Rx calibration tones The maximum input signal amplitude must not exceed 82 dBm MHz for wideband modes TBD dBm MHz for narrowband modes During Tx initialization sequence the user needs to ensure that...

Страница 16: ...opriate gain level for Rx signal chain ADRV9001 can control external LNA using its analog GPIOs as well as provide power amplifier bias voltage by utilizing AuxDAC outputs SPI RESET DEV_CLKL_OUT MCS D...

Страница 17: ...es that are present at Rx input The maximum input signal amplitude must not exceed 82 dBm MHz for wideband modes TBD dBm MHz for narrowband modes During Tx initialization sequence user needs to ensure...

Страница 18: ...able Radio TETRA type application ADRV9001 can use its internal LO to generate RF LO1 for both uplink and downlink For applications with stringent RF LO requirements the user can use external LO input...

Страница 19: ...seband processor then access to the Rx datapath during Tx slots must be time shared between DPD operation and Tx calibrations AGPIOs Analog GPIOs operating at 1 8 V level can be used as read or write...

Страница 20: ...the Rx1A should be powered down during Tx slots to ensure proper operation of the Tx calibration path connected to the Rx1B The user must ensure that appropriate attenuation is present in the line to...

Страница 21: ...DGPIOs For DMR type applications ADRV9001 supports RF Monitor mode of operation DGPIO pins are used to sent wake up signal to baseband processor allow baseband processor to move ADRV9001 into Monitor...

Страница 22: ...nt in line to prevent Rx being overloaded by Tx signal Tx Signal Path The user must ensure that appropriate level of isolation betweenTx1 andTx2 as well as Rx toTx is provided at the system level LO G...

Страница 23: ...Tx tracking calibrations are available when ADRV9001 operates in 2R2T FDD mode AGPIOs Analog GPIOs operating at 1 8 V level can be used as read or write digital levels of in the end user system AGPIOs...

Страница 24: ...used only during initialization calibrations The user must ensure that appropriate attenuation is present in line to prevent Rx being overloaded by Tx signal Tx Signal Path The user must ensure that...

Страница 25: ...des During Tx initialization sequence the user must ensure that the power amplifier is powered down to avoid unwanted emission of Tx calibration tones at the antenna No Tx tracking calibrations are av...

Страница 26: ...ts Control of the ADRV9001 Rx and Tx signal chains can be done by toggling control lines ADRV9001 can provide power amplifier bias voltage by utilizing AuxDAC outputs SPI RESET DEV_CLKL_OUT MCS DEV_CL...

Страница 27: ...um input signal amplitude must not exceed 82 dBm MHz for wideband modes TBD dBm MHz for narrowband modes During Tx initialization sequence the user must ensure that the power amplifier is powered down...

Страница 28: ...UG 1828 Preliminary Technical Data Rev PrC Page 28 of 338 ADRV9001 IN RADAR TYPE APPLICATION Figure 12 ADRV9001 in Radar Type Application...

Страница 29: ...Tx tracking calibrations In case of external DPD user must ensure that access to the Rx path during Tx slots is time shared between DPD operation and Tx calibrations Calibrations During Rx initializa...

Страница 30: ...s chm files can only be opened from a local drive If you attempt to open from a network drive the file may look empty The ADRV9001 is baseline device for the product family therefore all API and evalu...

Страница 31: ...in Figure 15 Each subfolder is explained in the following sections ADI understands that the developer may desire to use a different folder structure Whereas Analog Devices provides ADRV9001 API source...

Страница 32: ...ere are placeholder functions left empty for the customer to fill in their platform specific code c_src third_party This section contains third party APIs used to help the FPGA control the system This...

Страница 33: ...fpga pointer argument was not NULL The application uses this structure to interact with the DMA the SSI ports and other elements of functionality Figure 17 highlights the areas of the file structure t...

Страница 34: ...ints Highlighted More details are provided on the customer folder in the Software Integration chapter which goes into more specifics on the HAL At this point in development it is recommended to read t...

Страница 35: ...pective adi_ device _hal h files This allows a user to select only the components which are desired The user is responsible for implementing the interface defined in each HAL in order to use the corre...

Страница 36: ...imerWait_us Once done the adi_platform c code will automatically switch to using the placeholder customer code under the customer folder Below is provided a code snippet from adi_adrv9001_hal_customer...

Страница 37: ...ity of function calls defined in this section of the codebase are optional For example the adm1293 folder houses code used to interact with the ADM1293 device used for power monitoring via I2C however...

Страница 38: ...ration One such API is adi_adrv9001_spi_Verify which performs the following functions 1 Reads readonly register to check SPI read operation 2 Writes scratchpad register with 10110110 reads back the da...

Страница 39: ...O_FSEL_OUTP bcm2835_gpio_write CE_PIN HIGH delay 1 return 0 int32_t customer_adi_adrv9001_hal_close void devHalCfg Customer code goes here bcm2835_spi_end return 0 int32_t customer_adi_adrv9001_hal_sp...

Страница 40: ...I Error Handling and Debug Logging Functions The API provides a simple logging feature function that may be enabled for debugging purposes Available logging levels are given by adi_common_LogLevel_e a...

Страница 41: ...stantiate multiple adi_adrv9001_Device_t structures to describe each physical ADRV9001 device Multiple ADRV9001 devices can have their own adi_adrv9001_Init_t or can share a common adi_adrv9001_Init_t...

Страница 42: ...ange Restrictions Analog Devices maintains the code in the c_src devices folders Modification of this code by Application developers is forbidden Direct SPI read write operation is forbidden when conf...

Страница 43: ...ent Kit SDK provided to the user The ADRV9001 device can be initialized through the user s own software program independent of TES However the same API calling procedure described in this document sho...

Страница 44: ...for operation Then through SPI or PIN mode the device can be moved to the RF enabled state by enabling the transmit receive channels so transmission and reception can start Optionally for power saving...

Страница 45: ...a set of API calls which is used to load any radio configuration data not passed by profile before performing initial calibrations such as GPIO configuration PLL loop filter configuration carrier fre...

Страница 46: ...nnelEnableMode_Set to set the PIN mode 2 Toggle the pins for example Rx1_ENABLE and Tx1_ENABLE pins for Channel 1 to transition the channel to the RF enabled state SPI Mode 1 Call adi_adrv9001_Radio_C...

Страница 47: ...ble 12 Table 12 SPI Settings Data Structure Structure Member Value Function Default MSBFirst 0x00 Least significant bit first 0x01 0x01 Most significant bit first enSpiStreaming 0x00 Disable SW featur...

Страница 48: ...es the returning read data fields from the device to the baseband processor during a read transaction In a 4 wire SPI configuration SDO carries the returning data fields to the baseband processor The...

Страница 49: ...the next 14 bits in order from next LSB to MSB The next bit signifies if the operation is read set or write clear If the operation is a write the baseband processor transmits the next 8 bits LSB to M...

Страница 50: ...25 is only for the SPI timing diagram demonstration purpose Users can use the scratch register 0x009 for the SPI read write test Figure 24 Nominal Timing Diagram SPI Write Operation Figure 25 Nominal...

Страница 51: ...th value 0x24 to set ADRV9001 SPI to 3 wire mode Write whatever value to scratch register 0x009 then read register 0x009 to validate if the read value is the write one Users should use the oscilloscop...

Страница 52: ...Q data samples of 16bits With I and Q data samples of 12 bits ADRV9001 SSI has various and flexible work modes to support all kinds of system scenarios users can choose their appropriate work modes ac...

Страница 53: ...IN CMOS SSI 1 LANE Rx CHANNEL 1 M11 RX1_DCLK_OUT RX1_DCLK_OUT M12 N13 RX1_STROBE_OUT RX1_STROBE_OUT N14 M13 RX1_IDATA1_OUT M14 RX1_DATA_OUT RX1_IDATA0_OUT N11 RX1_QDATA3_OUT N12 RX1_QDATA2_OUT M4 RX2_...

Страница 54: ...utput current Drivers shorted together 4 1 mA Clock signal duty cycle 500 MHz 45 50 55 TR TF Output Rise Fall Time 300 mVp swing 0 371 nsec CMOS SYNCHRONOUS SERIAL INTERFACE CMOS SSI One Lane Mode CSS...

Страница 55: ...the serialized data I and Q and can be configured to be high For one clock cycle at start of I and Q sample transmit In the case a 16 bit data sample the TX_STROBE is high for one clock cycle and low...

Страница 56: ...transmit CSSI interface Tx for a 8 bit data symbols Figure 33 Transmit CSSI Timing for 8 Bit Symbols MSB First Figure 34 illustrates the receive CSSI interface Rx for 16 bit data symbols RX_DATA_OUT R...

Страница 57: ...es the remaining data bits are ignored Figure 36 Receive CSSI Timing with 2 Data Clock Rate for 16 Bit I Q Data Sample MSB First 32 Cycles Figure 37 Receive CSSI Timing with 4 Data Clock Rate for 16 B...

Страница 58: ...OUT is an output signal indicating the first bit of the serial data sample RX_IDATA0_OUT is an output serial data stream of I sample low byte RX_IDATA1_OUT is an output serial data stream of I sample...

Страница 59: ...smit CSSI Timing for 16 Bit I Q Data Sample MSB First Transmit and Receive CSSI Using DDR Clock Transmit and receive CSSI can be operated in either SDR or DDR data transfer Figure 44 illustrates the R...

Страница 60: ...5 Transmit CSSI DDR Clock Relation with Strobe Data Figure 46 and Figure 46 illustrate the timing diagram example for four lane mode receive transmit CSSI with DDR clock 16 bit I Q sample Figure 46 Fo...

Страница 61: ...Q Figure 48 illustrates the receive LSSI interface Rx1 and Rx2 for a 16 bit I Q data sample with MSB first configuration Figure 48 illustrates the receive LSSI interface for a 12 bit I Q data sample F...

Страница 62: ...BE signal can be configured to high for a half clock cycle to indicate the start of I and Q symbols or for half of I and Q data duration to distinguish between I data and Q data Figure 50 illustrates...

Страница 63: ...le and low for a half and 11 clock cycles For half of I and Q data duration In the case of a 16 bit data sample the TX_STROBE is high for 4 clock cycles and low for 4 clock cycles Q data sample In the...

Страница 64: ...a format for the CMOS and LVDS SSI LVDS 32bit 2 lanes I Q of 32 bit each o LSSI_DATA_I Q 31 0 RxDataPathI Q 21 0 b0 Gain_Change Gain 7 0 CMOS 64bit 1 Lane I Q o CSSI_DATA 63 0 RxDataPathI 21 0 b0 Gain...

Страница 65: ...gure 55 The preliminary timing specification for CMOS SSI is described in Table 18 and the preliminary timing specification for LVDS SSI is described in Table 19 Figure 54 Receive SSI Timing Diagram F...

Страница 66: ...TX SSI reference clock output TX_DCLK_OUT options lvdsIBitInversion bool Set LVDS SSI I bit differential pads polarity inversion Default false lvdsQBitInversion bool Set LVDS SSI Q bit inversion Defau...

Страница 67: ...alse cmosClkInversionEn True RX_IDATA_OUT I0_D15 RX_STROBE_OUT I0_D0 I0_D14 I0_D7 I0_D6 RX_STROBE_OUT I0_D8 I1_D15 Rx_DCLK_OUT Or Figure 59 RX CMOS DDR SSI output cmosDdrPosClkEn True cmosClkInversion...

Страница 68: ...di_adrv9001_SsiTestModeData_e testData Type of data to transmit over SSI uint32_t fixedDataPatternToTransmit Value of Fixed pattern to transmit over interface For various SSI data format CMOS Pattern...

Страница 69: ...th the specified fixed pattern to verify the SSI work status Users can call API adi_adrv9001_Ssi_Tx_TestMode_Configure to enable and configure the test mode and transmit the corresponding test pattern...

Страница 70: ...re the stream is flexible In the same way as the initialization structures change with profile so the stream processor image must change with configuration for example the stream that enables Rx1 diff...

Страница 71: ...command or SPI API command TIMING PARAMETERS CONTROL ADRV9001 has integrated stream processors to handle various external and internal events that are required to be serviced in real time Those stream...

Страница 72: ...this parameter is not needed except to determine other parameters Enable Rise to Analog On Delay is the delay between TX_ENABLE RX_ENABLE rising edge and analog power up beginning This is a user defin...

Страница 73: ...ard data usage is compliant with the standard requirement The transmit enable pin is controlled by user to signal the start and end of a transmit burst at the data port Based on the transmitter enable...

Страница 74: ...l datapath as shown in Figure 63 This could achieve better power savings For example if the user measures the propagation delay as 2 5 ms whereas the enableSetupDelay provided by ADRV9001 is 8 s analo...

Страница 75: ...hould be switched on after analog power up and switched off before analog power down Figure 64 Transmit Timing Parameters tTxPD tTxEnaSetup Receive Timing Definition Receive timing parameters define t...

Страница 76: ...nuously improving in the future propagationDelay tRxPD Helper Parameter Min N A Max N A This parameter should be measured by user and it is profile dependent and board layout dependent It does not nee...

Страница 77: ...lling edge and RX_ENABLE rising edge Guard time between RX_ENABLE falling edge and TX_ENABLE rising edge Guard time between TX_ENABLE falling edge and TX_ENABLE rising edge Guard time between RX_ENABL...

Страница 78: ...ing edge and RX_ENABLE rising edge is for making sure that the interface is turned off at the end of the previous frame before it turns on again for the next frame Because it takes tRxEnaHold to turn...

Страница 79: ...allow these power up procedures to complete If the additional power up procedures in Power Savings Mode 2 takes tPowerUpPSM2 to complete the ADRV9001 prevents the system from entering Power Savings M...

Страница 80: ...rame the power down procedures take some small but finite time For receiver channels with large propagation delay this may have no impact because the digital datapath might be on for a long time after...

Страница 81: ...addition to that for the transmit channel holdDelay is also reserved for future use and forced to 0 For the receive channel fallToOffDelay is also reserved for future use and forced to 0 API Command a...

Страница 82: ...actor Default min enableRiseToOnDelay tTxEnaRise2On enableRiseToAnalogOnDelay enableSetupDelay 91 ms scaleFactor Default min Not needed if not controlling LNA power enableGuardDelay tTxGT Not Used Cur...

Страница 83: ...ableHoldDelay tRxEnaHold enableFallToOffDelay enableFallToOffDelay propagationDelay Default max Can decrease if not all data received on air must be sent over interface When ADRV9001 calculates the de...

Страница 84: ...ified channel adi_adrv9001_Radio_ChannelEnablementDelays_Configure Configures channel enable delays for the specified channel adi_adrv9001_Radio_ChannelEnablementDelays_Inspect Inspects channel enable...

Страница 85: ...DGPIO falling edge will be the time taken for ADRV9001 to fully power down the analog front end This stream status to GPIO debug function can be enabled by API adi_adrv9001_Stream_C0_Gpio_Debug_Set i...

Страница 86: ...is generated based on the user s provided sampling frequency Note LP CLKPLL uses less power than HP CLKPLL but produces more jitter noise User must take this trade off into consideration for their en...

Страница 87: ...the limitations in decimation interpolation rate supported in the data path The following table summarizes the current dead zone frequency ranges Table 32 Dead Zone Frequency Ranges Dead Zone CLK PLL...

Страница 88: ...ve or positive edge of DEV_CLK to meet setup and hold time with good margins Each ADRV900x device uses this sampled MCS to synchronize all internally generated clocks which make them aligned between a...

Страница 89: ...83 shows the MCS signal required to be received by ADRV9001 There are a total of 6 pulses First 4 pulses are for the analog clock divider synchronization and the last 2 are for the digital clock divi...

Страница 90: ...that phase synchronization will take place but this does not require MCS to rerun Whenever PLL changes the phase sync will need to rerun to ensure the phase between all channels are synchronized To se...

Страница 91: ...clock is switched from CLK PLL to Reference clock MCS is initialized Ready to receive MCS pulses For current release 0 13 if the MCS command is sent with power saving mode 0 ADRV9001 will return error...

Страница 92: ...or multiple channels have different delays This is typically more important on the transmit side where data coming to SSI interface have different delays On the receive side the delay can be manipulat...

Страница 93: ...elay Max all MCS_to_Strobe latency Min all MCS_to_Strobe latency 4 Rx Each channel is independent from other channels o sampleDelay UserDefined o readDelay LVDS Only UserDefined minimum of 1 to compen...

Страница 94: ...the different delays and try to align the data in time PHASE SYNCHRONIZATION The preliminary characterization of the phase synchronization is shown below More updates will be provided in future relea...

Страница 95: ...error after synchronization of the two LOs these are internal register reads but should be accurate Figure 89 Phase Error after synchronization between two LOs 8 6 4 2 0 2 4 0 500 1000 1500 2000 2500...

Страница 96: ...configuration is to follow the recommended programming sequence and use provided API functions to set the clock synthesizer to the desired mode of operation The clock generation block of the clock syn...

Страница 97: ...EXTERNAL LO The device is provisioned with two external LO ports These ports are available as a pair of balls and are configured to be input for external LO signals External LO can receive a signal be...

Страница 98: ...reference clock source Provide higher reference clock frequency PFD Adjust loop filter bandwidth to trade off between close in band and far out band noise When changing the loop filter bandwidth typi...

Страница 99: ...I OPERATION Data Structure and Enums Table 34 Data Structures Related to LO Operation Data Structure Description adi_adrv9001_Device_t Data structure to hold ADRV9001 device instance settings adi_adrv...

Страница 100: ..._Radio_Carrier_Inspect Inspects carrier configuration LO Change Procedure To set the LO frequency to a particular channel user must 1 Verify the internal ARM microprocessor has been initialized 2 If d...

Страница 101: ...nels Tx1 Tx2 Rx1 Rx2 are using the same LO and user needs to change the LO then user needs to configure all channels Tx1 Rx2 Rx1 Rx2 to achieve that Loop Filter Configuration Currently the loop filter...

Страница 102: ...uency hopping are also shown ADRV9001 supports frequency hopping for Tx only Rx only and TRx The propagation delay for the data path must be considered as well as they will affect the channel use case...

Страница 103: ...Rx setup signals and sampled at HOP edges and then indicate the next frame will be Tx or Rx frame respectively It is worth noting that in LO muxing mode the information of which channel the frame need...

Страница 104: ...each hop frame data can be operated on a new carrier frequency with either Rx or Tx A hop frame is made up of a transition and a dwell period The transition period is the setup time for the hop frame...

Страница 105: ...y Prior to each hop the channel Tx or Rx information and the frequency information are obtained Note Tx setup signal has special meaning In LO muxing mode Tx setup falling edge indicates the start of...

Страница 106: ...les shown in Figure 106 Figure 106 LO Retune Timing Diagram PLL lock time is discussed in section LO Retune Currently user should rely on the actual test result on the LO retune time with the evaluati...

Страница 107: ...hop entries frequencies if two tables are loaded An entry in the frequency hopping table is defined as follows Table 38 Hop Table Entry Parameter Descriptions hopFrequencyHz Operating frequency in Hz...

Страница 108: ...make sure the DGPIO signals are set and stable by the time HOP signal edge comes ADRV9001 will sample the DGPIO pins at the HOP signal edge The following restrictions apply to this mode Each DGPIO pin...

Страница 109: ...m the newly selected table In the example from Figure 109 the new information read from the table will appear on air at frame 4 Like the PIN method the user can issue an API to switch between the two...

Страница 110: ...ge ADRV9001 reads the new entry from table B and switches to table A This frame from the first falling edge to the second rising edge uses table B entry At the next HOP edge the second rising edge at...

Страница 111: ...icable to automatic ping pong mode as long as user ensures the second hop table is loaded in prior to the completion of the first table Frequency Hopping Table Timing Time used to load a frequency hop...

Страница 112: ...0 f 5100 34 5150 5100 f 5200 35 5250 5200 f 5300 36 5350 5300 f 5400 37 5450 5400 f 5500 38 5550 5500 f 5600 39 5650 5600 f 5700 40 5750 5700 f 5800 41 5850 5800 f 5900 42 5950 5900 f 6000 To reduce t...

Страница 113: ...secutive Rx frame Min 2 s thopEdgeToChannelSetupFall Minimum time between the hop edge and when the channel setup can go low This restriction only applies for Tx 0 42 s tChannelSetupRiseToHopEdge Mini...

Страница 114: ...Min 0 Max Transition time If ADRV9001 is not controlling the antenna switch this parameter is not needed except to determine other parameters Typically the enableRiseToAnalogOnDelay enableSetupDelay w...

Страница 115: ...be dynamic profile dependent and board layout dependent Not necessary to configure ADRV9001 but may be necessary to derive other timing parameters enableRiseToOnDelay Delay between hop edge and the LN...

Страница 116: ...antees that the Rx front end and Tx front end are not powered up at the same time To achieve this ADRV9001 enforces a minimum setting for RxRiseToAnaOn specified by analogGuardTime to ensure that the...

Страница 117: ...h Long Propagation Delay Tx Only with Long Propagation Delay The ADRV9001 also supports Tx only case where the propagation delay is greater than the duration of a hop frame To achieve this the user ca...

Страница 118: ...In the example this is marked by the grey boxes If the user desires they can pad their data to keep the transition and dwell times consistent This is because the transition required for the first Tx...

Страница 119: ...y with Long Propagation Delay for LO Retune Tx Only with Short Propagation Delay There is a restriction to how long before the hop edge the Tx setup falling edge must come For profiles with very short...

Страница 120: ...ay of their profile Table 44 ORx Timing Parameters Time Required Timing Parameter Time Required us Narrowband Wideband tOrxRiseToOn 8 9 tOrxFallToOff 6 5 Table 45 ORx Timing Parameters Timing Restrict...

Страница 121: ...FREQUENCY HOPPING WITH RX ORX GAIN CONTROL In frequency hopping operation the user can configure the Rx gain control to either be manual gain control or AGC The user can configure the AGC as in non F...

Страница 122: ...g range of the frequencies For example if user has 6 regions they can specify 5 regions and the rest will be in the 8th region DPD will calculate its coefficients based on the specified regions This m...

Страница 123: ...ential pairs that is a total of 10 wires The interface is operated single ended in CMOS synchronous serial interface CSSI mode and differential in LVDS synchronous serial interface LSSI mode The CSSI...

Страница 124: ...Direct FM FSK modulation In this mode the DUC IQ FM FSK the interpolation stage 2 power amplifier protection and transmitter attenuation blocks digital part are all bypassed RFPLL is used to generate...

Страница 125: ...esponding index Note the attenuation step size for adjacent index is 0 05dB The 3rd column is the control word used to calculate the analog gain shown in the 4th column The equation used for this calc...

Страница 126: ...step size mode The TDD ramp mode was designed for power ramping in TDD systems Note it is not supported in the current release The constant step size mode allows to control an exact constant gain ste...

Страница 127: ...by continuously monitoring the output power of the Tx datapath Through API commands the user can enable power amplifier protection and set configuration parameters such as average and peak power thre...

Страница 128: ...the NCO and inserting it to the transmitter datapath Note this tone is visible at the transmitter output therefore user must ensure that antenna is isolated from the transmitter power amplifier is off...

Страница 129: ...nality is currently not enabled in the datapath and will be provided to user in the future Currently to use the FM FSK modulation capability of ADRV9001 user should perform symbol mapping interpolatin...

Страница 130: ...refer to API doxygen document Note more details about transmitter power amplifier ramp functionality can be found in this User Guide in the future Table 47 A List of Tx Data Chain APIs Rx Gain API Fun...

Страница 131: ...SI frequency offset correction FOC phase offset correction POC and overload detectors DEC is used to decimate the ADC sample rate to the desired output sample rate DC QEC PFIR FOC and POC are used to...

Страница 132: ...transmitter output Therefore users must ensure an appropriate level of isolation from ADRV9001 transmitter output to the antenna to ensure that test tones are not transmitted by the system This isolat...

Страница 133: ...fferent modulation schemes and bandwidths requirements When DPD is performed externally by baseband processor then baseband processor owns the entire ORx channel It is the user s responsibility to mak...

Страница 134: ...I commands followed by a 128 tap programmable PFIR as a channel selection filter In the future API commands will be provided for PFIR for more user interactions After PFIR besides applying the digital...

Страница 135: ...ion and linearity performance The HP ADC is based on Continuous Time Delta Sigma CTDS architecture and is 5 bits wide The LP ADC is based on voltage controlled oscillator VCO architecture and is 16 bi...

Страница 136: ...s from 24 kHz to 61 44 MHz except for some dead zones due to internal clocking constraints This is achieved through adjusting the internal CLK PLL frequency as well as a flexible arrangement of decima...

Страница 137: ...ifference is named as the carrier frequency offset CFO In the receiver data chain a frequency offset correction block is provided as an option to further correct small carrier frequency offset in both...

Страница 138: ...the data With the equipped capability of the ADRV9001 it detects the DMR and FM signal independent of the baseband processor during its idle state so that the baseband processor could sleep at the who...

Страница 139: ...ness of dynamic switch between Low Power and High Performance ADCs adi_adrv9001_Rx_AdcSwitch_Configure Configures ADC dynamic switch settings for the specified channel adi_adrv9001_Rx_AdcSwitch_Inspec...

Страница 140: ...will be discussed in more details in later sections Different from initial calibrations tracking calibrations usually use the real time traffic data for calibration Therefore tracking calibrations ar...

Страница 141: ...and chanInitCalMask 1 is the mask for Rx2 Tx2 channels calMode specifies the mode to run the desired initial calibration algorithms and force is a flag which will force all enabled calibrations to re...

Страница 142: ...bes the mask bit assignment for initial calibrations in adi_adrv9001_InitCalibrations_e It also explains the functionality of each initial calibration Note it is possible to select a different mask fo...

Страница 143: ...01_INIT_CAL_RX_TIA_CUTOFF Rx TIA Cutoff Initial Calibration This is used to tune the 3dB cut off frequency of theTIA filter D15 ADI_ADRV9001_INIT_CAL_RX_GROUP_DELAY Rx TIA Fine Initial Calibration Thi...

Страница 144: ...F_GD 8 TX_ATTEN_DELAY 9 TX_PATH_DELAY The calibration order is mostly determined by the algorithm dependency It is important that the users wait for these calibrations to complete successfully before...

Страница 145: ...th can appear at the transmitter output so it is important that the power amplifier connected to the device output be switched off which also prevents signals from the antenna reaching the transmitter...

Страница 146: ...fier is disabled the load seen at the transmitter output should be 50 The LNA or RF switch if no LNA presented externally for the loopback path should also be switched off to avoid receiving signals f...

Страница 147: ...med in the digital domain For RX_QEC_FIC RX_QEC_TCAL RX_GAIN_PATH_DELAY and RX_DMA_PATH_DELAY the calibration results are applied in digital domain for correction For RX_DCC RX_RF_DC_OFFSET RX_TIA_CUT...

Страница 148: ...igure 145 demonstrate the Tx LO leakage performance and Tx image rejection performance under different initial calibrations In this experiment the LO is swept from 100MHz to 2 9GHz in 100MHz step size...

Страница 149: ..._DAC No Yes No None No None D8 TX_PATH_DELAY Yes Yes No Tone Yes TX_ATTEN_DELAY D9 RX_HPADC_RC No Yes No None No None D10 RX_HPADC_ FLASH No Yes No None No None D11 RX_HPADC_DAC Not enabled Not enable...

Страница 150: ...ogramming Failed When Programming Failed happens the user could try the Program again If it continues to fail after multiple attempts as the next step the user could enable disable the optional initia...

Страница 151: ...0 Bit 6 7 Not used Reserved for future purpose ADI_ADRV9001_TRACKING_CAL_RX_HD2 0x00000100 ADI_ADRV9001_TRACKING_CAL_RX_QEC_WBPOLY 0x00000200 Bit 10 11 Not used Reserved for future purpose ADI_ADRV900...

Страница 152: ...her power efficiency Please refer to the Digital Predistortion section in the User Guide for more details D5 ADI_ADRV9001_TRACKING_CAL_TX_CLGC Tx CLGC Tracking Calibration This is used to compensate f...

Страница 153: ...ut to prevent transmitter output data from saturating the observation channel input When external DPD is employed in the system it should time share with other transmitter tracking calibrations to avo...

Страница 154: ...ceiver chain followed by a description of the receiver gain table concept Gain Control Modes This section advises how to select between AGC and MGC mode followed by a detailed description of how to op...

Страница 155: ...in control capability As shown in this figure the receiver chain has a number of observation elements that can monitor the incoming signal These can be used in either MGC or AGC mode Firstly an Analog...

Страница 156: ...called by the user right after loading the gain table to load multiple gain table regions and switch between multiple gain table regions during runtime The 2 fields which are used in the default gain...

Страница 157: ...y first assuming the max LNA Gain 0dB until the ADRV9001 front end attenuator runs out of attenuation Then new gain indices are produced by assuming LNA gain of N dB To achieve the desired total atten...

Страница 158: ...Element Control Receiver AGPIO Pins to Control External Gain Element Rx1 AGPIO 1 0 Rx2 AGPIO 3 2 These AGPIOs must be enabled as outputs and set for external gain functionality The 2 bit value program...

Страница 159: ...ble 62 outlines the counter parameters for the individual overload under range conditions Table 62 Peak Detector Counter Values Over Range Under Range Counter apdHighThresh over range apdUpperThreshPe...

Страница 160: ...ure 151 APD HB Gain Changes with Fast Attack Enabled Besides the fast attack mode it is also possible to enable a fast recovery mode This functionality is enabled with the enableFastRecoveryLoop param...

Страница 161: ...values This equivalence will be approximate as these thresholds have unique threshold settings and will not be exactly equal This section discusses the relevant priorities between the detectors and ho...

Страница 162: ...covery in Peak Detect AGC Mode Peak Power Detect Mode In this mode the peak and power detect work jointly to control the gain of the receiver chain In the event of an over range condition then both th...

Страница 163: ...rity scheme in peak power detect mode 1 APD Overrange 2 HB Overrange 3 APD lower level peak exceeded 4 HB lower level peak exceeded 5 Power Measurement In this example the gain would be decremented be...

Страница 164: ...ntrol of gain is required API command adi_adrv9001_Rx_GainControl_PinMode_Configure can be used to properly configure this mode In this mode out of 16 digital DGPIO pins 2 pins per receiver are used o...

Страница 165: ...V9001_GPIO_PIN_CRUMB_11_10 ADI_ADRV9001_GPIO_PIN_CRUMB_13_12 ADI_ADRV9001_GPIO_PIN_CRUMB_15_14 adi_adrv9001_GpioPinCrumbSel_e In both peak mode and peak and power mode a pair of bits Bit 0 and Bit 1 o...

Страница 166: ...o determine the setting of the APD thresholds in terms of the closest possible setting in terms of dBFS of the ADC assuming apdHighdBFS and apdLowdBFS for apdHighThresh and apdLowThresh respectively t...

Страница 167: ...rement is controlled by hbOverloadDurationCnt while the number of samples that should exceed the threshold in that period is controlled by hbOverloadThreshCnt Once the required number of samples excee...

Страница 168: ...AGC mode the HB peak detector has programmable gain attack and gain recovery step sizes Table 70 HB Attack and Recovery Step Sizes Gain Change Step Size Gain Attack hbGainStepAttack Gain Recovery hbUn...

Страница 169: ...pdate counter but more than an SLS delay before the gain update counter expiry Because slow loop settling SLS is typically several orders of magnitude smaller than gain update counter this is the most...

Страница 170: ...full gain update period is the sum of the gainUpdateCounter the slowLoopSettlingDelay and a number of AGC clock cycles If the slowLoopSettlingDelay is set to 4 the gain update counter must be set to 1...

Страница 171: ...tector_t agcUnderRangeLowInterval agcUnderRangeMidInterval agcUnderRangeHighInterval apdHighThresh apdLowThresh apdUpperThreshPeakExceededCount apdLowerThreshPeakExceededCount apdGainStepAttack apdGai...

Страница 172: ...ry 0 1 0 changeGainIfThreshHigh Applicable in both peak and peak and power detect modes 0 Gain changes will wait for the expiry of the gain update counter if a high threshold count has been exceeded o...

Страница 173: ...ble the power measurement block can be requested to perform a power measurement for a specific period of a frame This is applicable in TDD modes This parameter sets the duration of this power measurem...

Страница 174: ...ct AGC mode 0 63 4 apdHighThresh This sets the upper threshold of the analog peak detector When the input signal exceeds this threshold a programmable number of times set by its corresponding overload...

Страница 175: ...e HB under range threshold detectors Used only when the fast recovery option of the peak detect AGC mode is being used 0 16383 5826 hbUnderRangeMidThresh This sets the middle threshold of the HB under...

Страница 176: ...erloadThreshCount was exceeded in hbOverloadDurationCount to cause an HB Under Range Mid Threshold Overload Event In Peak Detect AGC mode not having sufficient peaks to cause the overload is flagged a...

Страница 177: ...ed by the receiver gain table as mentioned earlier Note different digital gain will be applied when configured in gain correction or gain compensation mode The receiver gain table has a unique front e...

Страница 178: ...nt 0 5 dB steps With internal control the device automatically applies the interface gain determined by RSSI which measures the input signal power right before the slicer Note in the gain correction m...

Страница 179: ...el 3 Figure 164 Slicer Bit Selection with Different Input Power Levels The slicer algorithm assumes a max PAR of 15dB and it adjusts the interface gain such that the measured signal power 15 dB is les...

Страница 180: ...l the API function adi_adrv9001_Rx_InterfaceGain_Set could be used The gain should be selected from one of the 10 options The following table summarizes the list of API functions currently available f...

Страница 181: ...g the GPIO pins user is allowed to retrieve the signal detector status which could be used to control receiver gain in Manual mode Note the signal detector status could also be retrieved in AGC mode F...

Страница 182: ...1828 Preliminary Technical Data Rev PrC Page 182 of 338 Figure 166 TES Configuration for Rx Interface Gain Signal Detection Parameters and Manual Control Mode Parameters when AGC is Configured 24159 1...

Страница 183: ...ne as needed Reset AGC settings to defaults can be used to reset all the parameters to their default values When the receiver gain control is not working as expected the user could perform the followi...

Страница 184: ...igurable can be 1 2 4 or 8 of the FIFO writing clock For wideband modes only 1x and 2 are supported and the reading clock rate cannot be above 61 44 MHz In the Signal FIFO as shown in Figure 169 there...

Страница 185: ...61 44 MHz Figure 170 presents the spectrum of desired tone and the generated NCO spurs levels relative to desired tone for the CFC NCO at 61 44 MHz sampling frequency The outlined plots show a typical...

Страница 186: ...This module can be bypassed Figure 172 Functional Diagram of Frequency Discriminator Illustrated by Figure 172 the Frequency Discriminator outputs the transient frequency deviation FD and the transien...

Страница 187: ...r and the ideal digital resampler is collected and plotted at the upside of Figure 174 The maximum phase error is collected and plotted at the downside of Figure 174 The Resampler can be used in both...

Страница 188: ...k Cooperating with other hardware blocks for example the CFC DDC and programmable FIR filters and so on ADRV9001 Rx narrowband demodulator can perform FSK and FM demodulation under the control of the...

Страница 189: ...fficients loading API function The configuration structure adi_adrv9001_PfirWbNbBuffer_t is defined as the following for the programming FIR filter coefficients typedef struct adi_adrv9001_PfirWbNbBuf...

Страница 190: ...firSymmetric_e ADI_ADRV9001_PFIR_COEF_NON_SYMMETRIC pfir_dmr_12p5k tapsSel adi_adrv9001_PfirNumTaps_e ADI_ADRV9001_PFIR_128_TAPS PFIR_128_TAPS pfir_dmr_12p5k gainSel adi_adrv9001_PfirGain_e ADI_ADRV90...

Страница 191: ...for different power saving applications Temporarily powering up down the unused Tx Rx channel in Calibrated state Dynamic interframe power saving is running automatically during all regular TDD TX RX...

Страница 192: ...lled in Calibrated state Figure 177 shows a DMR radio switch from TX only frames into TX RX alternate frames ADRV9001 is initialized with Tx and Rx enabled at the beginning of TX only frames baseband...

Страница 193: ...X must be active If TX and RX transition time is not long enough to allow power down mode 1 or 2 then users have to select TX RX Enable pin power down mode to 0 DGPIO power saving can be engaged durin...

Страница 194: ...er Saving mode the DPGIO in System Power Mode can only be pulled up when both Tx Enable and Rx Enable is low adi_adrv9001_powerSavingAndMonitorMode_SystemPowerSavingMode_Set is used to set the System...

Страница 195: ...onfigurable and users can decide detection first or sleep first when ADRV9001 is moved into monitor mode The enumerator adi_adrv9001_PowerSavingAndMonitorMode_MonitorDetectionMode_e defines five detec...

Страница 196: ...rted simultaneously Similarly once a SYNC code is detected ADRV9001 will start the wake up procedure ADRV9001 has the option to buffer the latest incoming data in Monitor Mode Detecting cycle once a v...

Страница 197: ...utput vs Actual Power Amplifier Output ADRV9001 DPD FUNCTION The ADRV9001 device provides a fully integrated DPD function that supports both narrow band NB and wide band WB applications It is a hardwa...

Страница 198: ...nts Calculation Engine The Coefficients Calculation Engine computes the DPD coefficients periodically and then updates the DPD Actuator for real time pre distortion of the transmit signal The pre dist...

Страница 199: ...ypically has a PAR of about 11dB To achieve higher PA efficiency and DPD algorithm stability a waveform with a large PAR is expected to have crest factor reduction CFR performed in baseband processor...

Страница 200: ...performance is significantly improved Figure 187 ACPR Performance Before and After DPD 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 OUTPUT AM...

Страница 201: ...ansmit gain value Based on those user could further adjust the value and set a proper gain target then close the loop and start the ADRV9001 CLGC algorithm to continuously track the gain variation bas...

Страница 202: ...enable adi_adrv9001_DpdAmplifier_e amplifierType adi_adrv9001_DpdLutSize_e lutSize adi_adrv9001_DpdModel_e model bool changeModelTapOrders uint32_t modelOrdersForEachTap 4 uint8_t preLutScale uint8_t...

Страница 203: ...0 Min 1 Max 3 75 clgcEnable bool Enable CLGC functionality False Set TRUE does not start the CLGC operation CLGC starts when the corresponding tracking calibration bit is set Each of these parameters...

Страница 204: ...upported LUT sizes are 256 and 512 This size determines the number of entries in the DPD LUT A larger number of entries provides better LUT granularity model Currently the model should be set to ADI_A...

Страница 205: ...t x t as the following x t TAP0 d t d t TAP1 d t 1 TAP3 d t 2 d t 1 TAP2 d t 2 d t 2 changeModelTapOrders This flag is used to provide user an option to select the default model tap orders or choose a...

Страница 206: ...ling factors to increase the signal level which might improve the DPD performance The scaling factor can be determined according to the dBFS of the input data peak As an example if the signal peak pow...

Страница 207: ...old uint32_t U2 30 Signal power for the upper threshold for the normalization of the magnitude and phase of the RX and TX data 0 1 0 0 031622776602 15 dBFS detectionPowerThreshold uint32_t U1 31 Power...

Страница 208: ...on of the auto correlation matrix using transmit data d n It is used to keep the nominal magnitude of each of the power terms about the same to avoid ill condition of the correlation matrix The scalin...

Страница 209: ...tLuts to be 1 it sets most polynomial terms to be 0 to remove the pre distortion at the beginning of DPD operation timeFilterCoefficient This parameter defines the coefficient of a single pole filter...

Страница 210: ...V9001 before performing initial calibrations externalLoopbackPeakPower It indicates the peak power of ORx input signal loop backed from the Tx output For DPD CLGC to achieve an optimal performance the...

Страница 211: ...ther start from scratch unity coefficients or a set of known coefficients This is a very useful option if user wants to reach convergence quickly under a similar transmit operation condition User coul...

Страница 212: ...doxygen document for more details Table 85 DPD APIs DPD Rx Function Name Description adi_adrv9001_dpd_Initial_Configure Configures the pre initial calibration DPD parameters Called by adi_adrv9001_Ut...

Страница 213: ...ble tracking calibrations and start with the default DPD post calibration parameter settings provided in TES After programming load and play the provided sample transmit input file Properly tune the t...

Страница 214: ...is 1 dB below ideal linearity 2 Determine the initial highest polynomial order of the main tap TAP1 by measuring the spectral regrowth bandwidth to carrier bandwidth ratio All lower order polynomial...

Страница 215: ...B o Maximum DPD expansion 3 dB 3 Adjust the transmit attenuator so that the PA input ACPR before PA is about 70 dBc 4 Connect the amplifier drivers and PA to the RF output 5 Increase the transmit atte...

Страница 216: ...ase the new profile is applied on all the configured Tx and Rx channels simultaneously so DPS could not operate on channels individually Figure 201 depicts a high level diagram showing the DPS operati...

Страница 217: ...ion ADRV9001 operates on the main profile with the fixed SSI rate which does not change during the entire profile switching operation To prepare for operating with the next profile BBIC should properl...

Страница 218: ...initial calibrations for dynamic profiles adi_adrv9001_arm_NextDynamicProfile_Set Sends the next dynamic profile to ADRV9001 and waits it to process when profile switching is performed adi_adrv9001_a...

Страница 219: ...e releases DPS OPERATIONS IN TES TES provides a user interface for experimenting DPS In the current implementation LTE 61 44MSPS profile must be configured under the Device Configuration page in eithe...

Страница 220: ...UG 1828 Preliminary Technical Data Rev PrC Page 220 of 338 Figure 206 Performing DPS in TES...

Страница 221: ...evice and then controlled using the Digital GPIO pins and Analog GPIO pins not all functionalities can be enabled at the same time DGPIO 15 DGPIO 14 DGPIO 13 DGPIO 12 DGPIO 11 DGPIO 10 DGPIO 9 DGPIO 8...

Страница 222: ...er a rising edge on the assigned pin DGPIO_0 through DGPIO_15 Tx attenuation increment pin select DGPIO0 through DGPIO_15 Tx attenuation decrement pin select Pin Based Rx Gain Index Increment and Decr...

Страница 223: ...ote that if the user has programmed a gain table that operates in a subset of the full gain table range i e using index 195 to 255 once the gain Index has reached Min Max Gain index subsequent the pin...

Страница 224: ...nge and underrange conditions of APD and power detector are provided to user The DGPIO pins could be associated with either one of the receivers Rx1 or Rx2 However when the similar information is requ...

Страница 225: ...AGPIO output each channel has 2 AGPIO control signals and achieve up to 4 external LNA gain steps control The external LNA gain control can be enabled and configured by adi_adrv9001_Rx_ExternalLna_Con...

Страница 226: ...upt ARM 2 ARM system error ARM 3 ARM calibration error ARM 4 Monitor interrupt ARM 5 Tx1 power amplifier Protection Error Transmitter 6 Tx2 power amplifier Protection Error Transmitter 7 Low Power Clo...

Страница 227: ...the AuxDAC takes precedence over all other AGPIO functionality when AuxDAC is enabled for a specific pin When the AuxDAC is disabled the configured AGPIO functionality is applied The AuxDAC can be en...

Страница 228: ...performed those AuxADC gain and offset errors are used to compensate the AuxADCs measure results AuxADC API Programming AuxDAC relative API commands are summarized in Table 94 users can find the deta...

Страница 229: ...bands of interest The mixer architecture is very linear and inherently wideband which facilitates wideband impedance matching The differential input impedance of the RX inputs are 100 as shown in Fig...

Страница 230: ...94 m5 FREQUENCY 4 500GHz S 2 2 0 249 143 402 IMPEDANCE 32 079 j10 157 m4 FREQUENCY 3 000GHz S 2 2 0 166 177 256 IMPEDANCE 35 757 j0 0585 FREQUENCY 30 00Hz TO 6 000GHz S 2 2 M6 M5 M3 M2 M1 M4 24159 159...

Страница 231: ...the simulation this way allows one to measure the S11 S22 and S21 of the 3 port system without complex math operations within the display page Note for highest accuracy EM modelling result of the PCB...

Страница 232: ...depending on the common mode voltage level of the external circuit Important considerations for the receiver RF port interface are as follows 1 Device to be interfaced filter balun T R switch externa...

Страница 233: ...simulation available in ADS without PCB artwork Figure 216 illustrates a wide band frequency match simulation setup in ADS for ADRV9001 RX1 2 A input pins in ADS for evaluating a possible configurati...

Страница 234: ...RF performance that is PO 1 dB PO MAX and so forth to degrade The choke inductance LC should be selected high enough relative to the load impedance such that it does not degrade the output power The...

Страница 235: ...ze choke dc resistance RDCR and the balun low frequency insertion loss In commercially available dc bias chokes resistance decreases as size increases However as choke inductance increases resistance...

Страница 236: ...nent pads are placed on the board to provide a physical location that can be used for the selected parallel circuit element For example R216 L216 and C216 components only have one set of SMD pads for...

Страница 237: ...AVX Ind L0201 series C216 DNI R216 DNI L217 DNI C217 1 5pF Murata GJM03 Series L238 DNI C238 DNI R238 0 L236 DNI C236 DNI R236 DNI L245 246 DNI C245 246 DNI R245 246 0 L247 248 DNI C247 248 DNI R247 2...

Страница 238: ...17 0 3 pF Murata GJM03 Series L238 DNI C238 DNI R238 DNI L236 DNI C236 DNI R236 0 L245 246 DNI C245 246 DNI R245 246 DNI L247 248 DNI C247 248 10pF Murata GJM03 Series R247 248 DNI L218 DNI C218 DNI L...

Страница 239: ...22 0 7pF Murata GJM03 Series L223 2 7 nH AVX Ind L0201 series C223 DNI R223 DNI L224 DNI C224 0 4pF Murata GJM03 Series L226 DNI C226 DNI R226 DNI L237 DNI C237 DNI R237 0 L249 250 DNI C249 250 DNI R2...

Страница 240: ...eliminary Technical Data Rev PrC Page 240 of 338 Figure 226 Return Loss of RX1 2 A Port Figure 227 Return Loss of RX1 2 B Port Figure 228 Insertion Loss Simulated RX1 2 A Port Red Curve RX1 2 B Port B...

Страница 241: ...C R313 L339 C339 C346 34 7 R367 36 8 R361 C333 C334 C335 L C R 341 L C R 348 L C 314 L C R 315 L C 316 30MHz 3 GHz MiniCircuits TC 1 13M L311 DNI C311 0 3 pF Murata GJM03 L309 310 220 nH CoilCraft LQW...

Страница 242: ...DNI C311 DNI L309 310 220 nH Murata Ind LQW18AN C309 C310 10 nF Murata GRM03 L312 313 1 2 nH AVX Ind L0201 Series C312 313 DNI R312 313 DNI L339 DNI C339 DNI C346 34 7 DNI R367 368 20 pF Cap Murata G...

Страница 243: ...matching network is similar to RX and TX port matching Depending on the selected divide ratio of ADRV9001 external LO input frequency divider SPI register setting a band of frequency in which external...

Страница 244: ...Refer to Table 100 for power level recommendation Table 99 Specifications for ADRV9001 RF EXT LO Differential Input Pins Parameter Note Min Typical Max Unit External LO frequency FEXTLO 60 12000 MHz...

Страница 245: ...on for external LO in range from 500 MHz to 1000 MHz In that region it is possible to inject external LO that will produce RF Channel frequency with x1 multiplier For example For FEXTLO 500 MHz the FC...

Страница 246: ...9 DNI R318 0 L326 DNI C319 DNI R356 DNI R321 0 R319 DNI C357 DNI R357 DNI C362 363 470 pF Murata GRM03 R326 327 DNI R328 329 DNI C364 366DN I L330 332 DNI C320 321 DNI R310 354 0 L331 DNI C352 DNI L33...

Страница 247: ...RV9001 can accommodate 3 different types of external clock signals applied at device clock input pins A differential low voltage differential signaling LVDS clock signal or a single ended clipped sine...

Страница 248: ...d to MODEA pin as shown in Figure 238 When LVDS mode input clock interface is selected with MODEA pin grounded an external clock is used as the reference clock for the RFPLL and the Clocking PLL on th...

Страница 249: ..._CLK input circuitry apply DEV_CLK as single ended to DEV_CLK_IN E7 ball and leave DEV_CLK_IN E8 ball unconnected Basically the same hardware configuration as in CMOS mode outlined in Figure 237 ensur...

Страница 250: ...Hz 113 02 111 08 107 00 114 02 112 08 108 00 1000 Hz 125 02 123 08 119 00 127 02 125 08 121 00 10 kHz 133 02 131 08 127 00 138 02 136 08 132 00 100 kHz 137 02 135 08 131 00 146 02 144 08 140 00 1 MHz...

Страница 251: ...ackup used for the ADRV9001 customer evaluation boards These boards employ 12 layers to achieve proper routing and isolation to best demonstrate all device functionality The dielectric material used i...

Страница 252: ...14 50 11 9 00 100 55 9 25 12 Edge Coupled Differential N A 100 00 10 8 25 15 50 11 8 25 99 64 10 02 1 N A means not applicable FAN OUT AND TRACE SPACE GUIDELINES The ADRV9001 device family uses a 196...

Страница 253: ...ide RF bandwidth applications For narrow RF bandwidth applications the board line impedance parameters within this document may not be optimal The following list provides general suggestions for board...

Страница 254: ...such as stripline may be necessary Design the RF line systems between the device ball pad reference plane and the balun filter reference plane for a differential impedance ZDIFF of 100 for the receive...

Страница 255: ...cement for termination resistor near the DEV_CLK_IN pins Traces should be shielded by surrounding ground with vias staggered along the edge of the differential trace pair This arrangement creates a sh...

Страница 256: ...r pin A 1 F capacitor should be placed near the power supply pin with the ground side of the bypass capacitor placed so that ground currents flow away from other power pins and their bypass capacitors...

Страница 257: ...ld be taken to place the ferrite beads near the ADRV9001 supply pins The ferrite beads should also be spaced to ensure their electric fields do not influence each other The ferrite bead should supply...

Страница 258: ...s support for JTAG boundary scan and the MODE pin is used to access the function Connect the MODE pin L13 to ground for normal operation Refer to the datasheet for JTAG boundary scan information Conne...

Страница 259: ...ifferential If multi chip synchronization feature is intended to be used in end application those signals should be routed with traces matching length of DEV_CLK_IN traces Figure 248 ADRV9001 AuxADC S...

Страница 260: ...cess Figure 249 Receiver Matching Network on ADRV9001 Evaluation Board The circuit in Figure 249 shows the layout topology for the chosen receiver matching network Note the location and orientation of...

Страница 261: ...emes suggested in Figure 241 and Figure 252 The red resistors R_DCR indicate the parasitic elements As the impedance of the parasitic increase the voltage drop V across the parasitic element increases...

Страница 262: ...hokes it is necessary to find the optimum compromise between the choke physical size choke dc resistance RDCR and the balun passband insertion loss Users should refer to the RF Port Interface Informat...

Страница 263: ...an inductor is not needed to match the balun impedance to the Tx output impedance Figure 254 Transmitter Power Supply for a Balun with a Center Tap Chokes The ADRV9001 evaluation board provides flexib...

Страница 264: ...ives for each that should be carefully considered Stripline has less loss and emits less EMI than microstrip lines but stripline traces require the use of vias that can add complexity to the task of c...

Страница 265: ...DATA_OUT H11 FMC_LA04_N DGPIO_13_TX1_DCLK_OUT D08 FMC_LA01_CC_P DGPIO_12_TX1_DCLK_OUT D09 FMC_LA01_CC_N TX1_DCLK_IN H13 FMC_LA07_P TX1_DCLK_IN H14 FMC_LA07_N TX1_STROBE_IN C10 FMC_LA06_P TX1_STROBE_IN...

Страница 266: ...coupling mechanisms Isolation Goals Table 107 lists the isolation targets for each RF channel to channel combination type To meet these goals with significant margin isolation structures were designe...

Страница 267: ...ADRV9001 based transceiver As a general rule spacing between square apertures should be no more than 1 10 of the shortest wavelength supported The wavelength can be calculated using Equation 1 300 r W...

Страница 268: ...re spaced and aligned to reduce magnetic coupling from the structures in the balun package Care must also be taken to reduce cross talk over shared grounds between baluns Another precaution taken invo...

Страница 269: ...number of different input pins They are collectively referred to in the datasheet as the VDDA_1P3 supply Each input should be treated as a noise susceptible input meaning proper decoupling and isolati...

Страница 270: ...and LO generation circuitry This pin is sensitive to supply noise B6 ANALOG VRFVCO2_1P0 1 0 1 0 V internal supply node for RF LO2 VCO circuitry Connect this pin together with A6 and bypass with a 4 7...

Страница 271: ...Transimpedance Amplifier TIA Tx2 Low Pass Filter LPF and Internal References H3 ANALOG VTX2LO_1P0 1 0 1 0 V internal supply node for Tx2 LO buffers upconverter and LO delay For normal operation leave...

Страница 272: ...m those sensors are accurate within 2 5 tolerance If those readback numbers are used to estimate overall power for power supply design user should add an extra power margin to accommodate dynamic cond...

Страница 273: ...k SENS 100uF SENS 100uF SENS VDD_1P8 5 tol VDDA_1P3 2 5 tol ADP1762 LDO Optional VDDA_1P0 2 5 tol ADP5056 1 8V 0 8A 1 0V 1 5A 1 3V 2A SENS SHUNT ADM1293 Monitor SHUNT ADM1293 Monitor SHUNT ADM1293 Mon...

Страница 274: ...f simulation that is described in Figure 261 The overall frequency response is better than typical bank of capacitor The region 1 GHz outlines performance of implemented cascaded C FB C FB filtering a...

Страница 275: ...s For example if the loop filter bandwidth is 50 kHz then any noise on the supply below 50 kHz will not be filtered The roll off of the loop filter provides the noise rejection above 50 kHz For each p...

Страница 276: ...ection will outline how decisions based on descriptions above could impact final power supply interconnectivity Figure 263 outlines recommended power supply interconnective in scenarios where user mig...

Страница 277: ...N2_1P3 E4 VAUXSYN_1P3 E10 VCLKSYN_1P3 E5 VRFVC01_1P3 A10 VRFVC02_1P3 A5 VCLKVCO_1P3 G5 VAUXVCO_1P3 G10 VANA1_1P3 C8 VANA2_1P3 C7 VCONV_1P3 H8 VRX1LO_1P3 E13 VRX2LO_1P3 E2 VTX1LO_1P3 G12 VTX2LO_1P3 G3...

Страница 278: ...1_1P0 A9 VRFVCO2_1P0 B6 VRFLO2_1P0 A6 VCONV_1P3 H8 VRX1LO_1P3 E13 VRX2LO_1P3 E2 VTX1LO_1P3 G12 VTX2LO_1P3 G3 VCLKVCO_1P0 H5 VAUXVCO_1P0 H10 VCONV_1P0 H7 VRX1LO_1P0 E14 VRX2LO_1P0 E1 VTX1LO_1P0 H12 VTX...

Страница 279: ...2 VTX1LO_1P3 G12 VTX2LO_1P3 G3 VCLKVCO_1P0 H5 VAUXVCO_1P0 H10 VCONV_1P0 H7 VRX1LO_1P0 E14 VRX2LO_1P0 E1 VTX1LO_1P0 H12 VTX2LO_1P0 H3 VANA2_1P0 C6 VANA1_1P0 C9 4 7 F 4 7 F Not connected 4 7 F Not conne...

Страница 280: ...t connect B9 Output VRFVCO1_1P0 Connect to VSSA when unused B14 C14 Input RX1A RX1A When accidentally enabled bias voltage could be present on those inputs Connect to VSSA thru capacitor C3 C4 Input R...

Страница 281: ...RESETB Not applicable K14 Output GP_INT Do not connect L1 Input SPI_EN Not applicable L2 Output SPI_DO In SPI 3 wire mode do not connect L3 Input TX2_EN Do not connect L7 L8 Input VDIG_1P0 Not applica...

Страница 282: ...0 Input TX1_QDATA_IN Do not connect P11 Input TX1_QDATA_IN Do not connect P12 Input Output TX1_STROBE_IN Do not connect P13 Input TX1_STROBE_IN Do not connect SUMMARY Circuit board layout and power su...

Страница 283: ...mption On the ADRV9001 evaluation board all the internal LDOs are used and they generate the 1v needed for all the rails This allows for different RF channels to be used while evaluating In a end syst...

Страница 284: ...tion Configuration 1 Some internal LDOs bypassed Internal LO generation used Low power operation Configuration 2 Some internal LDOs bypassed External LO generation used Figure 266 Power Saving LDO Con...

Страница 285: ...ifTX2 is not needed VTX2LO_1P3 VTX2LO_1P0 8 CLK_PLL_SYNTH_LDO Power down if the CLK_PLL_LP is in use VCLKSYN_1P3 N A 9 CLK_PLL_VCO_LDO Power down if the CLK_PLL_LP is in use VCLKVCO_1P3 VCLKVCO_1P0 1...

Страница 286: ...AVING_MODE_1 ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 AD...

Страница 287: ...1P3 E4 VAUXSYN_1P3 E10 VCLKSYN_1P3 E5 VRFVC01_1P3 A10 VRFVC02_1P3 A5 VCLKVCO_1P3 G5 VAUXVCO_1P3 G10 VANA1_1P3 C8 VANA2_1P3 C7 VRFVCO1_1P0 B9 VRFLO1_1P0 A9 VRFVCO2_1P0 B6 VRFLO2_1P0 A6 VCONV_1P3 H8 VRX...

Страница 288: ...ation used VDDA_1P3 2 5 tol VDDA_1P0 2 5 tol Internal PLLs not used for LOs LO GEN supply disconnected and powered down internally Figure 268 Tx1 Rx1 External LO Power Solution Now that the hardware c...

Страница 289: ...C implementation of this configuration will be the following adi_adrv9001_PowerManagementSettings_t initialize_powerManagementSettings_35 ldoPowerSavingModes ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 ADI_...

Страница 290: ...orms not included in the ADRV9001 demonstration kit One 1 12 V power supply for powering the Xilinx Platform The operating system on the controlling PC must be Windows 7 86 and 64 or Windows 10 86 and...

Страница 291: ...Preliminary Technical Data UG 1828 Rev PrC Page 291 of 338 Figure 269 Xilinx Evaluation Board with Jumper Settings and Switch Position Configured to Work with ADRV9001 Evaluation Platform 24159 300...

Страница 292: ...should be noted that quality of clock source used to generate DEV_CLK will directly impact overall system performance User must ensure that high quality stable and low phase noise clock source is used...

Страница 293: ...g steps 1 All jumpers are in the positions shown in Figure 272 2 SW6 is in position as shown in Figure 269 2 3 4 A position 3 The SD card included with the evaluation kit is placed in the J100 slot of...

Страница 294: ...n chip on the board the Q1 Q1_N pins of ADCLK944 generates the DEV_CLK for the ADRV9001 and REF_CLK for the Xilinx FPGA a It should be noted that quality of clock source used to generate DEV_CLK will...

Страница 295: ...h low phase noise to provide an input signal to the selected Rx RF input Use a shielded RG 58 50 coaxial cable 1m or shorter to connect the signal generator 5 To set the input level near the Rx receiv...

Страница 296: ...quency and the gain settings through the path a Note that there should be no input signal applied to the Rx input when performing an init calibration 5 For transmitter testing connect a spectrum analy...

Страница 297: ...g Devices ADRV9002 Transceiver Evaluation Software If this is not possible TES can be installed into any other location that user have write access to it The last step of the installation process is t...

Страница 298: ...connected hardware and revisions of different software setup blocks DHCP is enabled by default in Firmware version 0 14 5 5 When connecting the evaluation platform directly to a PC the default IP add...

Страница 299: ...allows the System Clock to run as slow as 150 MHz Under FDD Analog FM setup is supported LTE setup is supported This mode allows users to configure different channel configurations such as Rx2 Tx1 Con...

Страница 300: ...and before the power amplifier is transmitting real data The user can use the ExternalPathDelay_Calibrate and ExternalPathDelay_Get to retrieve the external loopback path delay in ns There is an Iron...

Страница 301: ...ith the External Gain Control word to get the desired gain Shown in Figure 281 the user can see that the top row is a copy of row 196 with just the external gain control changed Figure 280 Receiver Ob...

Страница 302: ...y at DEV_CLK_OUT Enable disable the DEV_CLK_OUT signal Select the clock PLL type to be either high performance or low power Note that LP PLL supports only certain sampling rates see Clock Generation s...

Страница 303: ...ning In some configuration modes such as TDD LTE an Antenna Diversity checkbox appears here This checkbox can be used to change the routing of the LOs from Rx1 Tx1 and Rx Tx2 to all on the same LO Set...

Страница 304: ...selected from Carrier Configuration Mode drop down menu For details on using the Frequency Hopping settings in the TES see the Frequency Hopping section above Figure 285 Carriers Configuration Tab Fr...

Страница 305: ...GH MED or LOW receiver ADC rate Select active Rx ADC from high performance or low power types Determine the Analog low pass filter frequency response Select Rx frequency offset correction Select DAC 3...

Страница 306: ...ividual tabs Enable disable Rx and Tx initialization calibrations Enable or Disable CLGC Closed Loop Gain Control This enable the CLGC setting in the Digital Pre Distortion Tab Monitor Mode RSSI Confi...

Страница 307: ...ated MCS signal which triggers simultaneous transfer on both ports Initial Calibrations The Initial Calibrations Figure 290 shows a list of the calibrations that will be run during the initialization...

Страница 308: ...igure 294 tabs aim to provide more detail on ADRV9001 selected mode of operation using Device Configuration tab Figure 279 The Rx and Tx datapath overview diagrams are provided in each tab These tabs...

Страница 309: ...capability allows zooming of the passband response using the mouse cursor as well as restoring to the full scale plot The TES also provides capability to export the data plotted on the graphs to an e...

Страница 310: ...process of compensating for the analog attenuation in the device prior to the ADC with a corresponding amount of digital gain before the digital signal is sent to the user Gain compensation uses the...

Страница 311: ...38 Figure 295 Rx Gain Control Tab Figure 296 GPIO Configuration For more detailed information refer to Rx Gain Control section of this document The GPIO tab also shares a section with the frequency ho...

Страница 312: ...ing mode in this tab Figure 299 We divide power saving modes to two categories System Power Savings and Channel Power Savings System Power Savings include CLKPLL LDO and ARM power down These can be co...

Страница 313: ...al data and the lower plot shows its time domain waveform When multiple Tx outputs are enabled the user can select desired data to be displayed in the Spectrum plot using the checkboxes below the plot...

Страница 314: ...e data is then stored on the Xilinx platform motherboard RAM and the RAM pointer loops through the data continuously until the stop button is pressed Figure 300 Transmit Data Tab Transmit Data File Fo...

Страница 315: ...C Rejection tracking calibration Change frequency offset in Hz Read back main parameters measured in received signal such as fundamental frequency its amplitude and DC offset Plot and save received da...

Страница 316: ...formatted as follows Channel 1I Channel 1Q I1 Q1 I2 Q2 I3 Q3 I4 Q4 In the case of RX frequency deviation only I samples are shown all Q samples are 0 Observer Operation The Observe tab opens a window...

Страница 317: ...ations by default However user can configure the timing as needed In the Automated TDD tab user can configure the parameters using TDD configuration files Frame and Sequences User can specify the dura...

Страница 318: ...populated by the TES based on the configuration file chosen Enable Column User can enable disable receiver transmitter channel Signal Column This displays the signal name attributed to that row Frame...

Страница 319: ...his can be used as ORX enable signal when routed to the GPIO assigned as ORX control RX1 DMA RX2 DMA TX1 DMA TX2 DMA ORX1 DMA ORX2 DMA The DMA enables that gate data transfer for each of the channels...

Страница 320: ...R_SMA_2 1 ADI_FPGA9001_DMA_TRIGGER_MCS 2 ADI_FPGA9001_DMA_TRIGGER_GPIO 3 ADI_FPGA9001_DMA_TRIGGER_TDD_ENABLE 4 ADI_FPGA9001_DMA_TRIGGER_IMMEDIATE 5 adi_fpga9001_DmaTrigger_e If using ADI_FPGA9001_DMA_...

Страница 321: ...istortion tab and closes the loop by unchecking the open loop tick box The Tx output power can be controlled by the CLGC Target Gain dB field in the transmit tab To use either of these functions the D...

Страница 322: ...e 1 Manual Frequency Hopping In this mode the user does not need to specify timing In most cases this is a mode to help users understand how frequency hopping operates in ADRV9001 Here we use DMR prof...

Страница 323: ...ample we will use default Mux Preprocess 6 Specify Operation a Automatic Loop Automatically increment through a frequency hopping table and wrap around once end has been reached b Automatic Ping Pong...

Страница 324: ...to the user frequency hopping is working in manual mode a Commit Frame After Next to Rx Tx and Perform Hop button will commit the Frame after Next to Rx Tx Notice this is not the same as next frame it...

Страница 325: ...are shown both in table A and table B vii All entries should display Unassigned viii The upcoming frame is not assigned ix There should not be any signal coming out of Tx 12 Click on Commit Frame Afte...

Страница 326: ...e the same for Tx Only shown in Tx Only The only difference is user instead of click play on Transmit tab must click play on Receive tab TRx TRx steps are also very similar Except user must click play...

Страница 327: ...e sequence that the user wants The integer 0 will correspond to the gain and attenuation value used in the table shown in Figure 316 This allows the user to reuse the same gain and attenuation setting...

Страница 328: ...ibed in the gain and attenuation tables Example 3 Automated TDD with Frequency Hopping Unlike the previous mode in this mode user will have to specify TDD timing User also will not have the frequency...

Страница 329: ...Therefore from time domain the Tx spectrum analyzer should show gaps between frames OTHER FUNCTIONALITIES Under File menu there are Save Session and Load Session options which allow save and restore T...

Страница 330: ...and select Set IronPython path For the default Iron Python installation this path is set to C Program Files x86 IronPython 2 7 Lib Figure 322 shows the IronPython editor after executing the File New f...

Страница 331: ...ting on the Tx to load and run the python script Inside the script you should only change PLL loop fitter bandwidth Other PLL parameters should be kept the same You can read them change the bandwidth...

Страница 332: ...erature Monitoring Window Driver Debugger A driver debugger is available from the View menu This is a live window that captures all the driver calls being used by the TES This can be used for debuggin...

Страница 333: ...uding firmware FPGA API and so on If errors occur for example programming the chip fails log file will provide certain debugging information on what is failing Figure 326 Log File Window Note that all...

Страница 334: ...r guide for jumper settings a Check that the switch on the Xilinx platform is set properly to boot from the SD card You can find these settings here Hardware Operation 3 SD card not compatible with FP...

Страница 335: ...voltage on that power domain should not exceed 1 89V The SD card provided with the evaluation card ensures that VADJ is properly set On an Evaluation Card there is a red LED installed close to the FM...

Страница 336: ...ch other or in combination with other innocuous errors that make little sense for generated code such as this Errors and bugs pertaining to implicit declarations undeclared pointers and missing bracke...

Страница 337: ...ces for its use nor for any infringements of patents or other rights of thirdpartiesthatmayresultfromitsuse Nolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatent rightsofAnalogDevices Trade...

Страница 338: ...UG 1828 Preliminary Technical Data Rev PrC Page 338 of 338...

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