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SC5506A Operating & Programming Manual

Rev 2.1.1

3

SignalCore products meet the essential requirements of Directives 2014/30/EU (EMC) and 2014/35/EU
(product safety) and comply with the relevant standards. Standards for Measurement, Control and
Laboratory Equipment include EN 61326-1:2013 and EN 55011:2009 for EMC, and EN 61010-1 for product
safety.

Recycling Information

All products sold by SignalCore eventually reach the end of their useful life. SignalCore complies with EU
Directive 2012/19/EU regarding Waste Electrical and Electronic Equipment (WEEE).

Warnings Regarding Use of SignalCore Products

(1)

PRODUCTS FOR SALE BY SIGNALCORE, INCORPORATED ARE NOT DESIGNED WITH COMPONENTS NOR TESTED FOR A LEVEL OF
RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT
SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN.

(2)

IN  ANY  APPLICATION,  INCLUDING  THE  ABOVE,  RELIABILITY  OF  OPERATION  OF  THE  SOFTWARE  PRODUCTS  CAN  BE  IMPAIRED  BY
ADVERSE  FACTORS,  INCLUDING  BUT  NOT  LIMITED  TO  FLUCTUATIONS  IN  ELECTRICAL  POWER  SUPPLY,  COMPUTER  HARDWARE
MALFUNCTIONS, COMPUTER OPERATING SYSTEM SOFTWARE FITNESS, FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED
TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS, MALFUNCTIONS OR
FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES, TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR
SOFTWARE),  UNANTICIPATED  USES  OR  MISUSES,  OR  ERRORS  ON  THE  PART  OF  THE  USER  OR  APPLICATIONS  DESIGNER  (ADVERSE

FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILU

RE

WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD NOT BE
SOLELY RELIANT UPON ANY ONE COMPONENT DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID DAMAGE, INJURY, OR DEATH, THE
USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES, INCLUDING BUT
NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS. BECAUSE EACH END-USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM
SIGNALCORE'  TESTING  PLATFORMS,  AND  BECAUSE  A  USER  OR  APPLICATION  DESIGNER  MAY  USE  SIGNALCORE  PRODUCTS  IN
COMBINATION  WITH  OTHER  PRODUCTS  IN  A  MANNER  NOT  EVALUATED  OR  CONTEMPLATED  BY  SIGNALCORE,  THE  USER  OR
APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF SIGNALCORE PRODUCTS
WHENEVER  SIGNALCORE  PRODUCTS  ARE  INCORPORATED  IN  A  SYSTEM  OR  APPLICATION,  INCLUDING,  WITHOUT  LIMITATION,  THE
APPROPRIATE DESIGN, PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION.

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Содержание 7100036-01

Страница 1: ... 2013 2020 SignalCore Inc support signalcore com SC5506A 25 MHz to 6 GHz RF Signal Source USB SPI and RS 232 Interfaces Operating Programming Manual ...

Страница 2: ...our Shipment 4 Setting Up and Configuring the SC5506A 4 Power Connection 5 Signal Connections 5 Communication Connections 6 Reset Button 6 Indicator LEDs 7 SC5506A Theory of Operation 8 Output Amplitude Control 8 Frequency Synthesizer 9 Reference Clock Control 10 Harmonics and Range of Operation 10 Channel Standby and RF Enable 10 Default Startup Mode 11 SC5506A Programming Interface 12 Device Dri...

Страница 3: ...e DAC Value 15 Storing the Startup State 15 Setting the RF ALC DAC Value 15 Querying the SC5506A Writing to Request Registers 16 Reading the Device Temperature 16 Reading the Device Status 17 Reading the User EEPROM 17 Reading the Calibration EEPROM 18 Reading the RF ALC DAC Value 18 Reading the Device Parameters firmware rev 4 0 18 Calibration EEPROM Map 19 Software API Library Functions 20 Const...

Страница 4: ...amming Manual Rev 2 1 1 iii Programming the RS 232 Interface 33 Writing to the Device via RS 232 33 Reading from the Device via RS 232 33 Using the LabVIEW Functions and NI VISA 34 Calibration Maintenance 35 Revision Notes 36 ...

Страница 5: ... related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN SIGNALCORE INCORPORATED MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF SIGNALCORE INCORPORATED SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID B...

Страница 6: ...atement is based on the assumption of reliable information and data provided by our component suppliers and may not have been independently verified through other means For products sold into China we also comply with the Administrative Measure on the Control of Pollution Caused by Electronic Information Products China RoHS In the current stage of this legislation the content of six hazardous mate...

Страница 7: ...ERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION INSTALLATION ERRORS SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES TRANSIENT FAILURES OF ELECTRONIC SYSTEMS HARDWARE AND OR SOFTWARE UNANTICIPATED USES OR MISUSES OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECT...

Страница 8: ...C5506A Dual Channel RF Signal Source 1 Software Installation USB Flash Drive may be combined with other products onto a single drive Setting Up and Configuring the SC5506A The SC5506A is a core module based RF signal source with all I O connections and indicators located on the front face of the module as shown in Figure 1 Each location is discussed in further detail below Figure 1 Front view of t...

Страница 9: ...ffice supply stores If deeper cleaning is necessary use lint free swabs and isopropyl alcohol to gently clean inside the connector barrel and the external threads Do not mate connectors until the alcohol has completely evaporated Excess liquid alcohol trapped inside the connector may take several days to fully evaporate and may degrade measurement performance until fully evaporated Tighten all SMA...

Страница 10: ...can also communicate with the device through the micro HDMI port Depending on the version ordered this connector provides either the SPI or RS 232 communication path The pinout of this connector viewed from the front of the module is listed in Table 2 Table 2 Pinout of the SC5506A micro HDMI connector for either SPI or RS 232 communication Pin Number SPI Function RS 232 Function 3 MISO TxD 5 8 RES...

Страница 11: ... provides visual indication of important modes There are three LED indicators on the unit Their behavior under different operating conditions is shown in Table 3 Table 3 LED indicator states LED Color Definition STATUS Green Power good and all oscillators phase locked STATUS Orange Channel powered down STATUS Red One or more oscillators off lock STATUS Off Power fault ACTIVE Green Off Device is op...

Страница 12: ...ated noise onto the carrier signal and these levels may not be acceptable although they are generally lower than the phase noise SignalCore offers the user the option to open the ALC loop to remove any unwanted AM noise that results from closed loop control Another side effect of the closed loop is that the frequency bandwidth of the ALC loop may slow down amplitude settling Typically in order to ...

Страница 13: ...eps of a few megahertz over several gigahertz of range The main or summing PLL combines the signals of the coarse and fine loops into one broad tuning signal with fine tuning capability Figure 2 Simplified block diagram of the SC5506A dual channel RF signal source Using this multiple loop approach produces signals with low phase noise and low phase spurs high levels of which exist in single loop a...

Страница 14: ...calibrated level of 10 dBm although the maximum calibrated output is greater than that in most regions of the spectrum The accuracy degrades as the amplitude approaches the compression point due to the linear approximation in the correction algorithm As a general rule however the lower the tuned frequency the higher the achievable output power Channel Standby and RF Enable The SC5506A has independ...

Страница 15: ...t state of either channel programmatically allowing the user to power up the device in the last saved state without having to reprogram Table 4 Factory default power up state CH1 CH2 Frequency 2 0 GHz 2 4 GHz Power 0 00 dBm 0 00 dBm RF Output Enabled Enabled ALC Mode Closed Loop Closed Loop Standby Disabled Disabled Auto Level Enabled Enabled Ref Out Disabled Ext Ref Lock Disabled ...

Страница 16: ...available in the Win API LabVIEW directory To use the library copy the SignalCore folder in that directory to LabVIEW path instr lib location of your LabVIEW installation directory The LabVIEW functions are simply VI wrappers around sc5506a dll Code written purely in G that does not call or depend on external library functions is available to our customers on request If pure G code SC5506A API fun...

Страница 17: ...pen Open Open Open Open Open Enable active LED RF_FREQUENCY 0x10 7 0 Frequency Word MHz 7 0 15 8 Frequency Word MHz 15 8 23 16 Frequency Word MHz 23 16 31 24 Frequency Word MHz 31 24 39 32 Frequency Word MHz 39 32 47 40 Open Open Open Open Open Open Open Channel RF_POWER 0x11 7 0 RF Power Word 7 0 15 8 Sign Bit RF Power Word 14 8 23 9 Channel RF_OUT_ENABLE 0x12 7 0 Open Open Open Open Open Open Ch...

Страница 18: ...1 This register sets the RF power level for each channel The LSB is 1 100th of a dB and absolute magnitude is carried in the first 15 bits starting with bit 0 The sign bit is indicated on bit 15 Setting bit 15 high implies a negative magnitude For example to write 10 05 dBm to the register the data is simply 1005 0x03ED For 10 05 dBm the data is 33773 0x83ED Setting RF Output Enable RF_OUT_ENABLE ...

Страница 19: ... EEPROM for the user to store data User data is sent one byte at a time and is contained in the last least significant byte of the three bytes of data written to the register The other two bytes contain the write address in the EEPROM For example to write user data 0x22 into address 0x1F00 requires writing 0x1F0022 to this register Setting the Reference DAC Value REFERENCE_DAC_SETTING 0x1D The fre...

Страница 20: ...made to the device ENPOINT_OUT to tell the device what data needs to be read back Then a read transfer is made from ENDPOINT_IN to obtain the data The number of valid bytes returned varies from 1 to 3 bytes See the register details below Reading the Device Temperature GET_TEMPERATURE 0x17 Data returned by this register needs to be processed to correctly represent data in temperature units of degre...

Страница 21: ...a bits Bit Description 23 Channel 1 Auto level enable Firmware rev 4 0 22 Channel 2 Auto level enable Firmware rev 4 0 21 Channel 1 ALC open 20 Channel 2 ALC open 19 Channel 1 RF output enable 18 Channel 2 RF output enable 17 Channel 1 standby enable 16 Channel 2 standby enable 15 Channel 1 sum PLL status 14 Channel 1 coarse PLL status 13 Channel 1 fine PLL status 12 Reserved 11 Channel 2 sum PLL ...

Страница 22: ...int representation is slightly more involved First convert the 4 bytes into an unsigned 32 bit integer value through concatenation and then in C C type cast a float pointer to the address of the value In C C the code would be float Y float X where X has been converted earlier to an unsigned integer An example written in C code would look something like the following Reading the RF ALC DAC Value GE...

Страница 23: ... ALC disabled temperature coefficient 100 128 U8 Ch0 VCO value 180 128 U8 Ch0 VCO tune value 200 128 U8 Ch1 VCO value 280 128 U8 Ch1 VCO tune value 300 1 U8 Reference attenuation value 301 125 U16 Cal frequencies MHz 3FB 3875 F32 Ch0 attenuator values 4087 125 F32 Ch0 ALC closed ref RF power 427B 125 U16 Ch0 ALC closed ref DAC value 4375 375 F32 Ch0 ALC closed coefficients 2nd order 4951 125 F32 C...

Страница 24: ...c5506a_SetStandby sc5506a_SetFrequency sc5506a_SetPowerLevel sc5506a_SetRfOut sc5506a_SetAlcMode sc5506a_DisableAutoLevel sc5506a_SetReferenceClock sc5506a_SetReferenceDac sc5506a_WriteUserEeprom sc5506a_StoreCurrentState sc5506a_SetAlcDac sc5506a_GetDeviceStatus sc5506a_GetTemperature sc5506a_GetAlcDac sc5506a_ReadCalEeprom sc5506a_ReadUserEeprom sc5506a_GetDeviceInfo sc5506a_GetDeviceParams note...

Страница 25: ...he system active light define RF_FREQUENCY 0x10 set the frequency define RF_POWER 0x11 set power of LO1 define RF_OUT_ENABLE 0x12 enable RF output define AUTO_PWR_DISABLE 0x13 disable auto power leveling define RF_ALC_MODE 0x14 select closed 0 or open 1 loop ALC modes define DEVICE_STANDBY 0x15 place the selected channel in standby mode define REFERENCE_MODE 0x16 reference settings define GET_TEMP...

Страница 26: ...efClkOutEnable bool deviceAccess deviceStatus_t Function Definitions and Usage Before reading this API section please note that there are API changes in revision 2 0 or later The changes consist of the following The API library is renamed from sc5506a dll to sc5506a_usb dll for the USB interface to prevent confusion between libraries for USB and RS232 Two extra members of the deviceStatus_t struct...

Страница 27: ...his information to open specific device s based on their unique serial numbers See sc5506a_OpenDevice function on how to open a device Note changes to OpenDevice function Function sc5506a_OpenDevice API DLL 2 0 Definition deviceHandle sc5506a_OpenDevice char devSerialNum Input char devSerialNum serial number string Return deviceHandle unsigned int number for the deviceHandle Description sc5506a_Op...

Страница 28: ...ceList char malloc sizeof char MAXDEVICES MAXDEVICES serial numbers to search for i 0 i MAXDEVICES i deviceList i char malloc sizeof char SCI_SN_LENGTH SCI SN has 8 char numOfDevices sc5506a_SearchDevices deviceList searches for SCI for device type if numOfDevices 0 printf No signal core devices found or cannot not obtain serial numbers n for i 0 i MAXDEVICES i free deviceList i free deviceList re...

Страница 29: ...eHandle devHandle handle to the opened device unsigned char commandByte The address byte of the register to write to unsigned long long int instructWord the data for the register unsigned int receivedWord data to be received Description sc5506a_RegRead reads the data requested by the instructWord data to the register specified by the commandByte See the register map on Table 6 for more information...

Страница 30: ...PowerLevel Definition int sc5506a_SetPowerLevel deviceHandle devHandle unsigned int channel float powerLevel Input deviceHandle devHandle handle to the opened device unsigned int channel channel name of target power level change float powerLevel set power in dBm Description sc5506a_SetPowerLevel sets the value of the desired output power level for the channel Function sc5506a_SetRfOut Definition i...

Страница 31: ...out port Description sc5506a_SetReferenceClock configures the reference clock behavior of the device Function sc5506a_SetReferenceDac Definition int sc5506a_SetReferenceDac deviceHandle devHandle unsigned int dacValue Input deviceHandle devHandle handle to the opened device unsigned int dacValue 14bit value for the reference DAC Description sc5506a_SetReferenceDac set the value of the DAC that tun...

Страница 32: ...current device settings Example Code showing how to use function Function sc5506a_GetTemperature Definition int sc5506a_GetTemperature deviceHandle devHandle float temperature Input deviceHandle devHandle handle to the opened device Output float temperature temperature in degrees Celsius Description sc5506a_GetTemperature retrieves the internal temperature of the device Function sc5506a_GetAlcDac ...

Страница 33: ... unsigned char byteData the read back byte data Description sc5506a_ReadUserEeprom reads back a byte from a specific memory address of the user EEPROM Function sc5506a_GetDeviceInfo Definition int sc5506a_GetDeviceInfo deviceHandle devHandle deviceInfo_t devInfo Input deviceHandle devHandle handle to the opened device Output deviceInfo_t devInfo device info struct Description sc5506a_GetDeviceInfo...

Страница 34: ...ee Table 2 for the connector pin layout Figure 4 shows a 3 byte SPI transfer initiated by the host the device is always in slave mode The CS pin must be asserted low for a minimum period of 5 𝜇𝑠 before data is clocked in The clock rate may be as high as 1 0 MHz however if the external SPI signals do not have sufficient integrity due to cabling problems then the rate should be lowered SignalCore re...

Страница 35: ...ster being targeted The MSB byte is the command register address as noted in Table 9 The subsequent bytes contain the data associated with the register As data from the host is being transferred to the device data present on its SPI output buffer is simultaneously transferred back MSB first via the master in slave out MISO line The data return is invalid for most transfers except for those registe...

Страница 36: ...mware versions 4 0 or later the number of bytes read back will extended from 4 to 5 bytes to be able to hold the frequency parameters being read back Including the 0x19 register a total of 6 bytes needs to be clock in to properly retrieve the correct values Figure 6 Reading queried data In the above example valid data is present in the last 2 bytes byte 1 and byte 0 Table 10 shows the valid data b...

Страница 37: ...last byte may be a null The device upon receiving the first register addressing byte will wait for all the associated data bytes before acting on the register instruction Failure to complete the register transmission will cause the device to behave erratically or hang Information for writing to the configuration registers is provided in Table 5 When the device receives all the information for a re...

Страница 38: ...he register calls are made Table 12 LabVIEW RS 232 port access functions Function Description Opens the VISA session to the serial port associated with the device Option to select between 2 Baud rates Closes the VISA session associated with the serial port Writes the data bytes in the buffer to the opened port The data buffer is a byte array Most significant data is sent first Writes the query reg...

Страница 39: ...e maintains a calibration data archive of all units shipped Archiving this data is important should a customer need to reload calibration data into their device for any reason SignalCore also uses the archived data for comparative analysis when units are returned for calibration Should any customer need to reload calibration data for their SC5506A SignalCore offers free support through support sig...

Страница 40: ...S 232 documentation Rev 1 1 4 Corrected Table 10 Rev 1 1 5 Corrected section on SPI communication corrected for missing references Rev 1 1 6 Updated EN and IEC testing standards and EU Directive references minor rewrites throughout manual Rev 1 2 0 Removed legacy SPI information Rev 2 0 0 Added revision 2 API information to take advantage of firmware revision 4 and later Rev 2 1 0 Added note for p...

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