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TRF6901 Datasheet(PDF) 4 Page - Texas Instruments |
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TRF6901 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 29 page ![]() TRF6901 SINGLECHIP RF TRANSCEIVER SLWS110G − SEPTEMBER 2001 − REVISED JUNE 2004 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional block diagram PA_OUT Ceramic Discriminator Serial Interface LNA CLK_OUT CLOCK DATA STROBE PA TX_DATA Band-gap /N /A- Counter Loop Filter Limiter Quadrature Demodulator RX_DATA LPF Amplifier Data Slicer Ceramic IF Filter Brownout MODE 8 5 /L 8 /Div. CTRL 8 6 RSSI RSSI_OUT 860 MHz to 930 MHz typical 9 dBm DC-DC Converter PFD CPs /Ref /K /B- RFIN DC_DC_IN Counter 2..254 2..62 Detector VCO 33 41 18 20 19 26 21 32 DET_OUT 45 860 MHz to 930 MHz LNA_IN1, LNA_IN2 DC_DC_OUT 25 22 4 32/33 1, 2 30 31 47 44, 43 35 37 36 39 34 27 15 CP_OUT 13 VCO_TUNE 2..255 Mixer STDBY 10.7-MHz Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION C1 24 Connect to external capacitor for operation of dc-dc converter C2 23 Connect to external capacitor for operation of dc-dc converter CER_DIS 35 Connect to external ceramic discriminator CLK_OUT 27 O Clock signal output for connection to external microcontroller CLOCK 18 I Serial interface clock signal input CP_GND 14 Charge pump ground CP_OUT 15 O Charge pump output CP_VCC 16 I Charge pump input VCC from dc-dc converter DATA 20 I Serial interface data signal input |
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