AK4635 Datasheet, PDF (71/81 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP

[AK4635]
Addr
09H
Register Name
Input Digital Volume Control
R/W
Default
D7
IVOL7
R/W
1
D6
IVOL6
R/W
0
D5
IVOL5
R/W
0
D4
IVOL4
R/W
1
D3
IVOL3
R/W
0
D2
IVOL2
R/W
0
D1
IVOL1
R/W
0
D0
IVOL0
R/W
1
IVOL7-0: Input Digital Volume; 0.375dB step, 242 Level (Table 22)
Default: “91H” (0.0dB)
Addr
0AH
Register Name
Digital Volume Control
R/W
Default
D7
OVOL7
R/W
1
D6
OVOL6
R/W
0
D5
OVOL5
R/W
0
D4
OVOL4
R/W
1
D3
OVOL3
R/W
0
D2
OVOL2
R/W
0
D1
OVOL1
R/W
0
D0
OVOL0
R/W
1
OVOL7-0: Output Digital Volume; 0.375dB step, 242 Level (Table 23)
Default: “91H” (0.0dB)
Addr
0BH
Register Name
ALC Mode Control 3
R/W
Default
D7
RGAIN1
R/W
0
D6
LMTH1
R/W
0
D5
OREF5
R/W
1
D4
OREF4
R/W
0
D3
OREF3
R/W
1
D2
OREF2
R/W
0
D1
OREF1
R/W
0
D0
OREF0
R/W
0
OREF5-0: Reference value at ALC Recovery operation for playback. 1.5dB step, 60 Level (Table 31)
Default: “28H” (+6.0dB)
LMTH1-0: ALC Limiter Detection Level / Recovery Waiting Counter Reset Level
Default: “01” (-4.1dBFS > ALC Output ≥ -6.0dBFS)
RGAIN1-0: ALC Recovery GAIN Step (Table 29)
RGAIN1 bit is located at D1 bit of 07H. Default: “00”
Addr
0CH
Register Name
Video Mode Control
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
SAGC VGCA4 VGCA3 VGCA2 VGCA1 VGCA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
1
0
VGCA4-0: Gain Control of Video output (Table 47)
SAGC: Select Video Output method. (Table 45)
Addr
0DH
Register Name
Input Digital Volume Control
R/W
Default
D7
VOL7
R
-
D6
VOL6
R
-
D5
VOL5
R
-
D4
VOL4
R
-
D3
VOL3
R
-
D2
VOL2
R
-
D1
VOL1
R
-
D0
VOL0
R
-
VOL7-0: The current volume of ALC; 0.375dB step, 242 Level, Read only (Table 33)
Rev. 0.6
- 71 -
2007/10