Datasheet

TLV320AIC3107
www.ti.com SLOS545D –NOVEMBER 2008–REVISED DECEMBER 2014
Table 38. 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
11101000: Gain = –12.0 dB
11101001: Gain = –11.5 dB
11101010: Gain = –11.0 dB
…
00000000: Gain = 0.0 dB
00000001: Gain = +0.5 dB
…
01110110: Gain = +59.0 dB
01110111: Gain = +59.5 dB
Table 39. 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
11101000: Gain = –12.0 dB
11101001: Gain = –11.5 dB
11101010: Gain = –11.0 dB
…
00000000: Gain = 0.0 dB
00000001: Gain = +0.5 dB
…
01110110: Gain = +59.0 dB
01110111: Gain = +59.5 dB
Table 40. Page 0 / Register 34: Left AGC Noise Gate Debounce Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7–D3 R/W 00000 Left AGC Noise Detection Debounce Control
These times
(1)
will not be accurate when double rate audio mode is enabled.
00000: Debounce = 0-msec
00001: Debounce = 0.5-msec
00010: Debounce = 1-msec
00011: Debounce = 2-msec
00100: Debounce = 4-msec
00101: Debounce = 8-msec
00110: Debounce = 16-msec
00111: Debounce = 32-msec
01000: Debounce = 64×1 = 64ms
01001: Debounce = 64×2 = 128ms
01010: Debounce = 64×3 = 192ms
…
11110: Debounce = 64×23 = 1472ms
11111: Debounce = 64×24 = 1536ms
D2–D0 R/W 000 Left AGC Signal Detection Debounce Control
These times
(1)
will not be accurate when double rate audio mode is enabled.
000: Debounce = 0-msec
001: Debounce = 0.5-msec
010: Debounce = 1-msec
011: Debounce = 2-msec
100: Debounce = 4-msec
101: Debounce = 8-msec
110: Debounce = 16-msec
111: Debounce = 32-msec
(1) Time constants are valid when DRA is not enabled. The values would change when DRA is enabled
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