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www.ti.com........................................................................................................................................................ SLOS524D – JUNE 2008 – REVISED AUGUST 2009
AGC FIXED GAIN CONTROL (Address: 5)
REGISTER
I2C
LABEL
DEFAULT
DESCRIPTION
ADDRESS
BIT
05 (05H) –
7:6
Unused
00
AGC Fixed
5:0
Fixed Gain
00110 (6dB)
Sets the fixed gain of the amplifier: two's compliment
Gain Control
Gain
100100
–28 dB
100101
–27 dB
100110
–26 dB
(gain increases by 1 dB with every step)
111101
–3 dB
111110
–2 dB
111111
–1 dB
000000
0 dB
000001
1 dB
000010
2 dB
000011
3 dB
(gain increases by 1dB with every step)
011100
28 dB
011101
29 dB
011110
30 dB
Fixed Gain
These bits are used to select the fixed gain of the amplifier. If the Compression is enabled,
fixed gain is adjustable from –28dB to 30dB. If the Compression is disabled, fixed gain is
adjustable from 0dB to 30dB.
Copyright 2008–2009, Texas Instruments Incorporated
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