AK4950 Datasheet, PDF (80/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
Addr
09H
Register Name
Digital MIC
R/W
Default
D23
D22
D21
D20
D19
D18
D17
0
0
PMDMR PMDML
0
DCLKE DCLKP
R
R
R/W
R/W
R
R/W
R/W
0
0
0
0
0
0
0
D16
DMIC
R/W
0
DMIC: Digital Microphone Connection Select
0: Analog Microphone (default)
1: Digital Microphone
DCLKP: Data Latching Edge Select
0: Lch data is latched on the DMCLK rising edge (“↑”). (default)
1: Lch data is latched on the DMCLK falling edge (“↓”).
DCLKE: DMCLK pin Output Clock Control
0: “L” Output (default)
1: 64fs Output
PMDML/R: Input Signal Select with Digital Microphone (Table 19)
Default: “00”
ADC digital block is powered-down by PMDML = PMDMR bits = “0” when selecting a digital microphone input
(DMIC bit = “1”, INL/R bits = “00”, “01” or “10”).
Addr
0AH
Register Name
BEEP Control
R/W
Default
D23
D22
D21
BPM
0
0
R/W
R
R
0
0
0
BPLVL2-0: BEEP Output Level Setting (Table 50)
Default: “0H”: 0dB
D20
BPVCM
R/W
0
BPVCM: Common Voltage Setting of MIN Input Amplifier
0: 1.15V (default)
1: 1.65V
BPM: BEEP Mode Setting (Table 47)
Default: “0”: Internal Resistance Mode
D19
D18
D17
D16
0
BPLVL2 BPLVL1 BPLVL0
R
R/W
R/W
R/W
0
0
0
0
MS1320-E-00
- 80 -
2011/10