Datasheet

TLV320AIC31
SLAS497C – AUGUST 2006 – REVISED DECEMBER 2008 ............................................................................................................................................. www.ti.com
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 is disabled
01: Hysteresis = 1-dB
10: Hysteresis = 2-dB
11: Hysteresis = 4-dB
D5 – D1 R/W 00000 Right AGC Noise Threshold Control
00000: Right AGC Noise/Silence Detection disabled
00001: Right AGC noise threshold = – 30-dB
00010: Right AGC noise threshold = – 32-dB
00011: Right AGC noise threshold = – 34-dB
…
11101: Right AGC noise threshold = – 86-dB
11110: Right AGC noise threshold = – 88-dB
11111: 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 00000000 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 00000000 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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