Datasheet
TLV320AIC3105
SLAS513B – FEBRUARY 2007 – REVISED DECEMBER 2008 .........................................................................................................................................
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Page 0/Register 30: Right AGC Control Register B
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D1 R/W 1111 111 Right AGC Maximum Gain Allowed
0000 000: Maximum gain = 0 dB
0000 001: Maximum gain = 0.5 dB
0000 010: Maximum gain = 1 dB
…
1110 110: Maximum gain = 59 dB
1110 111 – 111111: Maximum gain = 59.5 dB
D0 R/W 0 Reserved. Write only zero to this register bit.
Page 0/Register 31: Right AGC Control Register C
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D6 R/W 00 Noise Gate Hysteresis Level Control
00: Hysteresis = 1 dB
01: Hysteresis = 2 dB
10: Hysteresis = 3 dB
11: Hysteresis is disabled
D5 – D1 R/W 00 000 Right AGC Noise Threshold Control
00 000: Right AGC Noise/Silence Detection disabled
00 001: Right AGC noise threshold = – 30 dB
00 010: Right AGC noise threshold = – 32 dB
00 011: Right AGC noise threshold = – 34 dB
…
11 101: Right AGC noise threshold = – 86 dB
11 110: Right AGC noise threshold = – 88 dB
11 111: Right AGC noise threshold = – 90 dB
D0 R/W 0 Right AGC Clip Stepping Control
0: Right AGC clip stepping disabled
1: Right AGC clip stepping enabled
Page 0/Register 32: Left-AGC Gain Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D0 R 0000 0000 Left-Channel Gain Applied by AGC Algorithm
1110 1000: Gain = – 12.0-dB
1110 1001: Gain = – 11.5-dB
1110 1010: Gain = – 11.0-dB
…
0000 0000: Gain = 0.0-dB
0000 0001: Gain = +0.5-dB
…
0111 0110: Gain = +59.0-dB
0111 0111: Gain = +59.5-dB
Page 0/Register 33: Right AGC Gain Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D0 R 0000 0000 Right Channel Gain Applied by AGC Algorithm
1110 1000: Gain = – 12.0-dB
1110 1001: Gain = – 11.5-dB
1110 1010: Gain = – 11.0-dB
…
0000 0000: Gain = 0.0-dB
0000 0001: Gain = +0.5-dB
…
0111 0110: Gain = +59.0-dB
0111 0111: Gain = +59.5-dB
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