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IC, RS21501
Pin No. 1 2 3-7 8, 9 10 11 12 13, 14 15 16 17 18 19 20 21, 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin Name DVDD DVCC D4-D0 DRXIF1, DRXIF0 DCLK/2 CMD2 DGND CMD1, CMD0 T/R
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I/O � � I/O O O I � I I I I I � � � � � I � I � � I I � O � I/O I/O � I � � � I I O � � � O Bias. Voltage detection input. Analog ground. Power supply for digital block. Power supply for analog block.
Description
Digital input/output terminals D4 to D0. Received data output. 9.6 MHz output. Command input 2. Digital ground. Command input 1, 0. Send/reception selection. Standby. Sleep. TCXO 19.2 MHz input. NC. Analog ground. Power supply for analog block. Analog ground. Power supply for analog block. Reception's second IF signal input (+). Analog ground. Reception's second IF signal input (-). Gain adjustment.
STBY
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SLEEP REF IN AFC OUT AGND AVCC AGND AVCC RX2NDP AGND RX2NDN LNAB LNA RBIAS VSENSE AGND IFRX AGND RFI/O+ RFI/OAVCC TXIF_IN AGND OSC_OUT AGND TANK VCO_IN PD_OUT AVCC AGND AVCC TXIF_OUT
Reception's second IF signal output. (to 10.75 MHz band-pass filter). Analog ground. First IF signal input/output. (+). First IF signal input/output. (-). Power supply for analog block. Transmitter's second IF signal input. Analog ground. NC. (No connection). Analog ground. Tank circuit from second station. Input from second station. Phase comparator output from 2nd station. Power supply for analog block. Analog ground. Power supply for analog block. Transmitter's second IF signal output. (to 10.75 MHz band pass filter).
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