Micrel MICRF506 Скачать руководство пользователя страница 2 | Manualshive

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Micrel

MICRF506BML/YML

July 2006

2

M9999-092904

+1 408-944-0800

General Description....................................................................................................................................................1

Features......................................................................................................................................................................1

Applications ................................................................................................................................................................1

RadioWire® RF Selection Guide ................................................................................................................................4

Ordering Information...................................................................................................................................................4

Block Diagram ............................................................................................................................................................4

Pin Configuration ........................................................................................................................................................5

Pin Description............................................................................................................................................................5

Absolute Maximum Ratings

.....................................................................................................................................6

Operating Ratings

....................................................................................................................................................6

Electrical Characteristics

.........................................................................................................................................6

Programming ..............................................................................................................................................................9

Writing to the control registers in MICRF506 ...........................................................................................................10

Writing to a Single Register ......................................................................................................................................10

Writing to All Registers .............................................................................................................................................11

Writing to n Registers having Incremental Addresses..............................................................................................11

Writing to n Registers having Non-Incremental Addresses......................................................................................12

Reading from the control registers in MICRF506 .....................................................................................................12

Programming interface timing...................................................................................................................................12

Power on Reset ........................................................................................................................................................13

Programming summary ............................................................................................................................................14

Frequency Synthesizer.............................................................................................................................................15

Crystal Oscillator (XCO)........................................................................................................................................16
VCO ......................................................................................................................................................................17
Charge Pump ........................................................................................................................................................18
PLL Filter...............................................................................................................................................................18
Lock Detect ...........................................................................................................................................................18
Modes of Operation ..............................................................................................................................................18

Transceiver Sync/Non-Synchronous Mode..............................................................................................................19

Data Interface ...........................................................................................................................................................19

Receiver....................................................................................................................................................................20

Front End ..............................................................................................................................................................20
Sallen-Key Filters..................................................................................................................................................20
Switched Capacitor Filter ......................................................................................................................................21
RSSI......................................................................................................................................................................21
FEE .......................................................................................................................................................................22
Bit Synchronizer....................................................................................................................................................23

Transmitter................................................................................................................................................................24

Power Amplifier.....................................................................................................................................................24
Modulator ..............................................................................................................................................................26

Using the XCO-tune Bits ..........................................................................................................................................28

Typical Application....................................................................................................................................................30

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Содержание MICRF506

Страница 1: ...e Each channel includes a pre amplifier a third order Sallen Key RC low pass filter that protects the following switched capacitor filter from strong adjacent channel signals and a limiter The main ch...

Страница 2: ...iting to n Registers having Incremental Addresses 11 Writing to n Registers having Non Incremental Addresses 12 Reading from the control registers in MICRF506 12 Programming interface timing 12 Power...

Страница 3: ...programming bit 35 Table 1 Detailed description of programming bit 35 Table 2 Main Mode bit 40 Table 3 Synchronizer mode bit 40 Table 4 Modulation bit 40 Table 5 Prefilter bit 40 Table 6 Power amplifi...

Страница 4: ...NA 2 0 3 6V 18mA FSK ASK MLF 24 Ordering Information Part Number Junction Temp Range 1 Package MICRF506YML TR 40 to 85 C Lead free 32 Pin MLF TM MICRF506BML TR 40 to 85 C 32 Pin MLF TM ______________...

Страница 5: ...connect 9 CIBIAS O Connection for bias resistor 10 IFVDD IF mixer power supply 11 IFGND IF mixer ground 12 ICHOUT O Test pin 13 QCHOUT O Test pin 14 RSSI O Received signal strength indicator 15 LD O P...

Страница 6: ...A Standby Current 280 A VCO and PLL Section Reference Frequency 4 40 MHz 433 75MHz to 434 25MHz 0 7 1 3 ms PLL Lock Time 5 3kHz bandwidth 430MHz to 440MHz 1 3 2 ms PLL Lock Time 5 20kHz bandwidth 433...

Страница 7: ...BER 10 3 106 dBm 38 4kbps 4 BER 10 3 104 dBm 76 8kbps 2 BER 10 3 101 dBm 125kbps 2 BER 10 3 100 dBm Receiver Sensitivity 200kbps 2 BER 10 3 97 dBm 125kbps 125kHz deviation 12 dBm Receiver Maximum Inpu...

Страница 8: ...t High 0 7VDD VDD V VIL Logic Input Low 0 0 3VDD V Clock Data Frequency 5 10 MHz Clock Data Duty Cycle 5 45 55 Notes 1 Exceeding the absolute maximum rating may damage the device 2 The device is not g...

Страница 9: ...ried out at a rate determined by the user The MICRF506 will ignore transitions on the SCLK line if the CS line is inactive The MICRF506 can be put on a bus sharing clock and data lines with other devi...

Страница 10: ...ess and R W bit and Values into the MICRF506 MICRF506 will sample the IO line at negative edges of SCLK Make sure to change the state of the IO line before the negative edge Refer to figures below Bri...

Страница 11: ...isters having incremental addresses Writing to n Registers having Incremental Addresses In addition to entering all bytes it is also possible to enter a set of n bytes starting from address i A6 A5 A0...

Страница 12: ...st address to read from can be any valid address 0 22 Reading is not destructive i e values are not changed The IO line is output from the MICRF506 input to user for a part of the read sequence Refer...

Страница 13: ...dge of SCLK to valid IO during a read operation assuming load capacitance of IO is 25pF 75 ns July 2006 13 M9999 092904 1 408 944 0800 Table 6 Timing Specification for the 3 wire Programming Interface...

Страница 14: ...long 1 for read 0 for write Address and R W bit together make 1 octet All control registers are 8 bits long Enter read msb in every octet first Always write 8 bits to read 8 bits from a control regist...

Страница 15: ...gement of a PLL based frequency synthesizer The MICRF506 has a dual modulus prescaler for increased frequency resolution In a dual modulus prescaler the main divider is split into two parts the main p...

Страница 16: ...en the crystal terminals should be equal to CL for the crystal to oscillate at the specified frequency CL 1 1 C10 1 C11 Cparasitic The parasitic capacitance is the pin input capacitance and PCB stray...

Страница 17: ...3 436MHz 1 0 0 1 0 436 450MHz 0 1 1 1 1 Table 8 VCO Bit Setting The bias bit will optimize the phase noise and the frequency bit will control a capacitor bank in the VCO The tuning range the RF freque...

Страница 18: ...his is not suppressed as much as when doing modulation on the VCO with a lower bandwidth filter A schematic for a second R2 0 and C3 NC and third order loop filter is shown in Figure 8 C3 C1 Pin 27 CP...

Страница 19: ...k requency of 20kHz fXCO Crystal oscillator frequency Refclk_K 6 bit divider values between 1 and 63 BitRate_clkS Bit rate setting values between 0 and 6 Data Interface The MICRF506 interface can be d...

Страница 20: ...is important in order to prevent mixer noise from dominating the overall front end noise performance The LNA is a two stage amplifier and has a nominal gain of approximately 23dB at 434MHz The front...

Страница 21: ...bit divider divides the input frequency by 4 the cut off frequency of the SC filter is 16MHz 40 x 4 100kHz 1st order RC low pass filters are connected to the output of the SC filter to filter the clo...

Страница 22: ...ing UP pulses 1 0 Counting DN pulses 1 1 Counting UP and DN pulses UP increments the counter DN decrements it FEEC_3 FEEC_2 No of symbols used for the measurement 0 0 8 0 1 16 1 0 32 1 1 65 Table 10 F...

Страница 23: ...lock which needs to be programmed according to the bit rate The clock frequency should be 16 times the actual bit rate a bit rate of 20 kbit sec needs a bit synchronizer clock with frequency of 320 kH...

Страница 24: ...esigned for the 434MHz band with 50Ohm terminations The component values may have to be tuned to compensate for the layout parasitics This filter may also increase the receiver selectivity Frequency M...

Страница 25: ...Frequency synthesizer The divider values stored in the M0 N0 and A0 registers will be used when transmitting a 0 and the M1 N1 and A1 registers will be used to transmit a 1 The difference between the...

Страница 26: ...2 Refclk_K f f Mod_clkS where fMOD_CLK is the modulator clock shown in Figure 19 fXCO is the crystal oscillator frequency Refclk_K is a 6 bit number and Mod_clkS is a 3 bit number Mod_clkS can be set...

Страница 27: ...ency components in the generated waveform a filter with programmable cut off frequency can be enabled This is done using Mod_F2 Mod_F0 the least one being LSB The Mod_F should be set according to the...

Страница 28: ...affect the tuning range With a 16 0 MHz crystal TN4 26011 from Toyocom and external capacitor values of 1 5 pF the tuning range will be approximately symmetrical around the center frequency A XCO_tune...

Страница 29: ...alue giving the lowest IFEEI Local variables XCO_Present 5 bit holds present value in XCO_tune bits XCO_Step 4 bit holds increment decrement of XCO_tune bits SCO_Sign 1 bit holds POS or NEG increment...

Страница 30: ...00nF 100nF X7R 10 0603 16V Kyocera CM105X7R104K16A 3 C3 NC 4 C4 18pF 18pF COG 5 0603 50V Kyocera CM105CG180J50A 5 C5 47pF 47pF COG 5 0603 50V Kyocera CM105CG470J50A 6 C6 15pF 15pF COG 5 0603 50V Kyoce...

Страница 31: ...ed minimum number of via s are 9 and they should be directly connected to ground plane providing the best RF ground and thermal performance For best yield plugged or open via s should be used D2 Y e X...

Страница 32: ...up Ex A trace width of 75 mil 1 9 mm gives 50 impedance on a FR4 board dielectric cons 4 4 with copper thickness of 35 m and height layer 1 layer 2 spacing of 1 00 mm RF circuitry is sensitive to vol...

Страница 33: ...Micrel MICRF506BML YML Package Information MICRF506BML MICRF505BML 32 Pin MLF B July 2006 33 M9999 092904 1 408 944 0800...

Страница 34: ...nformation MICRF506YML CPL D2 E2 e L D E H h H2 b Bottom view Top view Side view D D2 E E2 e b L CPL H h H2 Units 5 0 3 10 0 10 5 0 3 10 0 10 0 5 0 25 0 4 0 05 0 20 0 85 0 05 0 00 0 05 0 2 mm July 200...

Страница 35: ...0_5 N0_4 N0_3 N0_2 N0_1 N0_0 0001101 M0_11 M0_10 M0_9 M0_8 0001110 M0_7 M0_6 M0_5 M0_4 M0_3 M0_2 M0_1 M0_0 0001111 A1_5 A1_4 A1_3 A1_2 A1_1 A1_0 0010000 N1_11 N1_10 N1_9 N1_8 0010001 N1_7 N1_6 N1_5 N1...

Страница 36: ...SB 3 Mod_I3 Modulator current setting 2 Mod_I2 Modulator current setting 1 Mod_I1 Modulator current setting 0 Mod_I0 Modulator current setting LSB 0000101 7 Reserved not in use 6 Reserved not in use 5...

Страница 37: ...bit 4 A0_4 A0 counter 5 bit 3 A0_3 A0 counter 4 bit 2 A0_2 A0 counter 3 bit 1 A0_1 A0 counter 2 bit 0 A0_0 A0 counter 1 bit 0001011 7 Reserved not in use 6 Reserved not in use 5 Reserved not in use 4...

Страница 38: ...M1 counter 10 bit 0 M1_8 M1 counter 9 bit 0010011 7 M1_7 M1 counter 8 bit 6 M1_6 M1 counter 7 bit 5 M1_5 M1 counter 6 bit 4 M1_4 M1 counter 5 bit 3 M1_3 M1 counter 4 bit 2 M1_2 M1 counter 3 bit 1 M1_...

Страница 39: ...M9999 092904 1 408 944 0800 0010110 7 FEE_7 FEE value bit 7 MSB 6 FEE_6 FEE value bit 6 5 FEE_5 FEE value bit 5 4 FEE_4 FEE value bit 4 3 FEE_3 FEE value bit 3 2 FEE_2 FEE value bit 2 1 FEE_1 FEE valu...

Страница 40: ...n off Transparent transmission of data 1 Rx Bit synchronization on Bit clock is generated by transceiver 1 Tx DataClk pin on Bit clock is generated by transceiver Table 4 Modulation bit Modulation1 Mo...

Страница 41: ...K 0 0 1 F 32K 0 1 0 F 16K 0 1 1 F 8K 1 0 0 F 4K 1 0 1 F 2K 1 1 0 F K 1 1 1 F Can not be used as BitRate_clk Table 8 Test signals OutS3 OutS2 OutS1 OutS0 IchOut QchOut Ichout2 RSSI QchOut2 NC 0 0 0 0 G...

Страница 42: ...measurement 0 0 8 0 1 16 1 0 32 1 1 64 July 2006 42 M9999 092904 1 408 944 0800 MICREL INC 2180 FORTUNE DRIVE SAN JOSE CA 95131 USA TEL 1 408 944 0800 FAX 1 408 474 1000 WEB http www micrel com The in...

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