AK4753 Datasheet, PDF (63/85 Pages) Asahi Kasei Microsystems – 2-in, 4-out CODEC with DSP Functions

[AK4753]
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
05H Lch DATT
L7
L6
L5
L4
L3
L2
L1
L0
06H Rch DATT
R7
R6
R5
R4
R3
R2
R1
R0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
1
1
1
1
1
1
1
1
L7-0, R7-0: Digital Attenuation Control (Table 24)
Default: “FFH” (MUTE)
Addr
07H
Register Name
Gain Setting
R/W
Default
D7
1PSTG1
R/W
0
D6
1PSTG0
R/W
0
D5
1PREG1
R/W
0
D4
1PREG0
R/W
0
D3
2PSTG1
R/W
0
D2
2PSTG0
R/W
0
D1
2PREG1
R/W
0
D0
2PREG0
R/W
0
2PREG1-0: DSp2 Pre-Gain setting (Table 26)
Default: “00”
2PSTG1-0: DSP2 Post-Gain setting (Table 27)
Default: “00”
1PREG1-0: DSP1 Pre-Gain setting (Table 26)
Default: “00”
1PSTG1-0: DSP1 Post-Gain setting (Table 27)
Default: “00”
Addr
08H
Register Name
DSP1 Limiter
Mode Control
R/W
Default
D7
1LFSTN
R/W
0
D6
D5
D4
D3
1ZELMN 1RGAIN1 1RGAIN0 1LMAT1
R/W
R/W
R/W
R/W
0
0
0
0
D2
1LMAT0
R/W
0
D1
1LMTH1
R/W
0
D0
1LMTH0
R/W
0
1LMTH1-0: DSP1 Limiter Detection Level / Recovery Counter Reset Level (Table 31)
Default: “00”
1LMAT1-0: DSP1 Limiter ATT Step (Table 32)
Default: “00”
1RGAIN1-0: DSP1 Recovery GAIN Step (Table 35)
Default: “00”
1ZELMN: DSP1 Zero Crossing Detection Enable at Limiter Operation
0: Enable (default)
1: Disable
1LFSTN: DSP1 Limiter functions when the output was bigger than full scale
0: When output is bigger than full scale, VOL value is changed instantly. (default)
1: The output is changed by the Limiter operation at the zero crossing point or at the zero crossing timeout.
MS1311-E-00
- 63 -
2011/07