AK4950 Datasheet, PDF (84/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
Addr Register Name
2AH Digital Volume Control
R/W
Default
D23
DVOL7
R/W
1
D22
DVOL6
R/W
1
D21
DVOL5
R/W
0
DVOL7-0: Output Digital Volume 2 (Table 39)
Default: “C1H” (0dB)
D20
DVOL4
R/W
0
D19
DVOL3
R/W
0
D18
DVOL2
R/W
0
D17
DVOL1
R/W
0
D16
DVOL0
R/W
1
Addr
2BH
Register Name
MIC Gain Control 2
R/W
Default
D23
MSGAINR3
R/W
0
D22
D21
MSGAI NR2 MSGAINR1
R/W
R/W
0
0
D20
MSGAINR0
R/W
0
D19
MSGAINL3
R/W
0
D18
MSGAINL2
R/W
0
D17
MSGAINL1
R/W
0
D16
MSGAINL0
R/W
0
MSGAINL0-3: Lch Mic Sensitivity Compensation (Table 22)
MSGAINR0-3: Rch Mic Sensitivity Compensation (Table 22)
Addr Register Name
D23
D22
D21
D20
D19
D18
D17
D16
2CH Digital Filter Control 1
0
0
0
PFSDO PFDAC ADCPF
OVOLC
IVOLC
R/W
R
R
R
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
1
1
1
IVOLC: IVOL Control
0: Independent
1: Dependent (default)
When IVOLC bit = “1”, IVL7-0 bits control both Lch and Rch volume levels, while register values of IVL7-0
bits are not written to IVR7-0 bits.
OVOLC: Output Digital Volume Control Mode Select
0: Independent
1: Dependent (default)
When OVOLC bit = “1”, OVL7-0 bits control both Lch and Rch volume levels, while register values of
OVL7-0 bits are not written to OVR7-0 bits.
ADCPF: Programmable Filter / ALC Input Signal Select
0: SDTI
1: ALC Output (default)
PFDAC: DAC Input Signal Select
0: SDTI (default)
1: Programmable Filter / ALC Output
PFSDO: SDTO Output Signal Select
0: ADC (+ 1st HPF) Output
1: Programmable Filter / ALC Output (default)
MS1320-E-00
- 84 -
2011/10