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MAX2830
2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
Table 25. Register 9 (A3:A0 = 1001)
BIT
D13:D11
D10
D9:D0
RECOMMENDED
000
0
1110110101
DESCRIPTION
Set to recommended value.
Enable Transmitter Gain Programming Through the Serial or Parallel Interface. Set to 1 to
enable programming through the 3-wire serial interface (D5:D0 in Register A3:A0 = 1011).
Set to 0 to enable programming in parallel through external digital pins (B6:B1).
Set to recommended value.
Table 26. Register 10 (A3:A0 = 1010)
BIT
D13:D10
D9:D7
D6:D3
D2:D0
RECOMMENDED
0111
011
0100
100
DESCRIPTION
Power-Amplifier Enable Delay. Sets a delay between RXTX low-to-high transition and internal PA
enable. Programmable in 0.5μs steps. D13:D10 = 0001 (0.2μs) and D13:D10 = 1111 (7μs).
Set to recommended value.
Second-Stage Power-Amplifier Bias Current Adjustment. Set to XXXX for 802.11g/b.
First-Stage Power-Amplifier Bias Current Adjustment. Set to XXX for 802.11g/b.
Table 27. Register 11 (A3:A0 = 1011)
BIT
D13:D7
D6:D5
D4:D0
RECOMMENDED
0000000
11
11111
DESCRIPTION
Set to recommended value.
LNA Gain Control. Set to 11 for high-gain mode. Set to 10 for medium-gain mode, reducing
LNA gain by 16dB. Set to 0X for low-gain mode, reducing LNA gain by 33dB.
Receiver VGA Control. Set D4:D0 = 00000 for minimum gain and D4:D0 = 11111 for
maximum gain.
Table 28. Register 12 (A3:A0 = 1100)
BIT
D13:D6
D5:D0
RECOMMENDED
00000101
000000
DESCRIPTION
Set to recommended value.
Transmitter VGA Gain Control. Set D5:D0 = 000000 for minimum gain, and set D5:D0 =
111111 for maximum gain.
Table 29. Register 13 (A3:A0 = 1101)
BIT
D13:D10
D9:D6
D5:D0
Maxim Integrated
RECOMMENDED
0011
1010
010010
Set to recommended value.
Set to recommended value.
Set to recommended value.
DESCRIPTION
29
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