STW5095 Datasheet, PDF (39/69 Pages) STMicroelectronics – Low Power Asynchronous Stereo Audio Codec with Integrated Power Amplifiers

STw5095
4 Control Registers
4.10 AGC
CR#
(hex)
Description
CR34 (22h) AGC Attack/Decay coeff.
CR35 (23h) AGC Control
D7
D6
D5
D4
D3
AGCATT(3:0)
X
ENAGCLIN ENAGCMIC AGCRANGE
D2
D1
AGCDEC(3:0)
AGCLEV(3:0)
Bits
Name
7-4 AGCATT(3:0)
3-0 AGCDEC(3:0)
Value
CR34 Description
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
AGC Attack Time Constant; FS=AD data rate
Audio filter in AD path
4096 / FS
2048 / FS
1365 / FS
1024 / FS
683 / FS
512 / FS
341 / FS
256 / FS
171 / FS
128 / FS
85 / FS
64 / FS
43 / FS
32 / FS
Voice filter in AD path
8192 / FS
4096 / FS
2731 / FS
2048 / FS
1365 / FS
1024 / FS
683 / FS
512 / FS
341 / FS
256 / FS
171 / FS
128 / FS
85 / FS
64 / FS
AGC Decay Time Constant; FS=AD data rate
Audio filter in AD path
65536 / FS
32768 / FS
21845 / FS
16384 / FS
10923 / FS
8192 / FS
5461 / FS
4096 / FS
2731 / FS
2048 / FS
1365 / FS
1024 / FS
683 / FS
512 / FS
341 / FS
256 / FS
Voice filter in AD path
131072/ FS
65536 / FS
43691 / FS
32768 / FS
21845 / FS
16384 / FS
10923 / FS
8192 / FS
5461 / FS
4096 / FS
2731 / FS
2048 / FS
1365 / FS
1024 / FS
683 / FS
512 / FS
D0 Def.
0000 0000
0000 0000
Def.
0000
0000
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