Rockwell SoniCrafter BT8960 - Manual (Page 68)

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3.0 Registers
3.1 Conventions
Bt8960
Single-Chip 2B1Q Transceiver
N8960DSB
3.2.32 0x29—Transmitter Gain Register (tx_gain)
tx_gain[3:0] Transmit Gain—A 4-bit, 2’s-complement, read/write field controlling the transmitter gain.
Upon initialization, the value in the Transmitter Calibration Register [tx_calibrate; 0x28] may
be written into this register by software to set the transmitter gain to the nominal value, or the
user may set it to another desired value.
7 6 5 4 3 2 1 0
– – tx_gain[3] tx_gain[2] tx_gain[1] tx_gain[0] – –
tx_gain[3:0] Relative Transmitter Gain (dB)
1000 –1.60
1001 –1.36
1010 –1.13
1011 –0.91
1100 –0.69
1101 –0.48
1110 –0.27
1111 –0.07
0000 0.13
0001 0.32
0010 0.51
0011 0.70
0100 0.88
0101 1.05
0110 1.23
0111 1.40