AK4955 Datasheet, PDF (85/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
Addr
02H
Register Name
MIC gain Control 1
R/W
Default
D7
PMMICR
R/W
0
D6
PMMICL
R/W
0
D5
PMMP
R/W
0
D4
MICL
R/W
0
D3
MGAIN3
R/W
0
D2
MGAIN2
R/W
1
D1
MGAIN1
R/W
1
D0
MGAIN0
R/W
0
MGAIN3-0: MIC-Amp Gain Control (Table 21)
MICL: MIC Power Output Voltage Select
0: typ 2.5 V (AVDD= 2.9~3.6V) (default)
1: typ 2.0V (AVDD= 2.7~3.6V)
PMMP: MIC Power Management
0: Power down (default)
1: Power up
PMMICL: MIC-amp Lch Power Management
0: Power down (default)
1: Power up
PMMICR: MIC-amp Rch Power Management
0: Power down (default)
1: Power up
Addr
03H
Register Name
Signal Select 2
R/W
Default
D7
D6
D5
D4
D3
SPKG1 SPKG0 BEEPS DACS
0
R/W
R/W
R/W
R/W
R
0
0
0
0
0
INL: ADC Lch Input Source Select
0: LIN1 pin (default)
1: LIN2 pin
INR: ADC Rch Input Source Select
0: RIN1 pin (default)
1: RIN2 pin
DACS: Signal Switch Control from DAC to Speaker-Amp
0: OFF (default)
1: ON
When DACS bit is “1”, DAC output signal is input to Speaker-Amp.
BEEPS: Signal Switch Control from the MIN pin to Speaker-Amp
0: OFF (default)
1: ON
SPKG1-0: Speaker-Amp Output Gain Select (Table 60)
D2
D1
D0
0
INR
INL
R
R/W
R/W
0
0
0
MS1343-E-00
- 85 -
2011/12