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2-8
RF2938
Rev A8 010418
11
State Decode Table
Input Pins
Internally Decoded Signals
PD
RX EN
TX EN
BB EN
RXIF EN
TXRF EN
Sleep Mode
0
x
x
0
0
0
Baseband Only
1
0
1
1
0
0
Receive Mode
1
1
1
1
1
0
Transmit Mode
1
0
0
1
0
1
Full Duplex
1
1
0
1
1
1
NOTES
BB_EN Enables:
TX_LPF’s and buffers
Quad Demodulator mixers
Baseband VGA and gm-C LPF’s
Data Amplifiers
IF LO buffer/phase splitters
RXIF_EN Enables:
Front-end IF amplifier (RX)
RX IF VGA amplifiers
TXRF_EN Enables:
Front-end IF amplifier (TX)
TX VGA
RF upconverter and buffer
PA driver
RF LO buffer
Quad Modulator mixers