AK4665A Datasheet, PDF (44/52 Pages) Asahi Kasei Microsystems – 20-Bit Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4665A]
Addr Register Name
03H ALC1 Mode Control 1
Default
D7
RGAIN1
0
D6
LMTH1
0
D5
ALC1
0
D4
ZELMN
0
D3
LMAT1
0
D2
LMAT0
0
D1
RGAIN0
0
D0
LMTH0
0
LMTH1-0: ALC1 Limiter Detection Level / Recovery Waiting Counter Reset Level (Table 9)
RGAIN1-0: ALC1 Recovery Gain Step (Table 13)
LMAT1-0: ALC1 Limiter ATT Step (Table 10)
ZELMN: Zero Crossing Detection Enable at ALC1 Limiter Operation
0: Enable (Default)
1: Disable
ALC1: ALC1 Enable
0: ALC1 Disable (Default)
1: ALC1 Enable
ALC1 is enabled at ALC1 bit is “1”.
Addr Register Name
04H ALC1 Mode Control 2
Default
D7
REF7
1
D6
REF6
1
D5
REF5
1
D4
REF4
0
D3
REF3
0
D2
REF2
0
D1
REF1
0
D0
REF0
1
REF7-0: Reference Value at ALC1 Recovery Operation (Table 14)
Addr Register Name
05H IVOL Control
Default
D7
IVOL7
1
D6
IVOL6
0
D5
IVOL5
0
D4
IVOL4
1
D3
IVOL3
0
D2
IVOL2
0
D1
IVOL1
0
D0
IVOL0
1
IVOL7-0: Input Digital Volume (Table 16)
Addr Register Name
06H Mode Control
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
ATS HPM DIF1 DIF0 DFS
0
0
0
0
0
1
0
0
DFS: Sampling Speed Mode (Table 1)
DIF1-0: Audio Interface Format (Table 4)
Default: “10” (Mode 2)
HPM: Mono Output Select of Headphone (Table 35,Table 36)
ATS: Digital attenuator transition time setting (Table 20)
MS0440-E-01
- 44 -
2006/05