AK4691 Datasheet, PDF (42/80 Pages) Asahi Kasei Microsystems – 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP

REF7-0
GAIN(dB)
bits
MIC
LINE
(GSEL bit = “0”) (GSEL bit = “1”)
F1H
+36.0
+6.0
F0H
+35.625
+5.625
EFH
+35.25
+5.25
:
:
E2H
+30.375
:
+0.375
E1H
+30.0
0
(default)
E0H
+29.625
-0.375
DFH
+29.25
-0.75
:
:
04H
-52.875
:
-82.875
03H
-53.25
-83.25
02H
-53.625
-83.625
01H
-54.0
-84.0
00H
MUTE
MUTE
Table 31. Reference Level at ALC Recovery operation (0.375dB step)
RFST1 bit RFST0 bit Limiter / Recovery Speed
0
0
4 times
(default)
0
1
8 times
1
0
16 times
1
1
N/A
Table 32. Fast Limiter / Recovery Speed Setting (N/A: Not Available)
[AK4691]
MS0672-E-00
- 42 -
2007/11