AK4951AEN Datasheet, PDF (79/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
Addr
08H
Register Name
Digital MIC
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
PMDMR PMDML DCLKE
0
DCLKP DMIC
R/W
R
R/W
R/W
R/W
R
R/W
R/W
0
0
0
0
0
0
0
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 21)
Default: “00”
ADC digital block is powered-down by PMDML = PMDMR bits = “0” when selecting a digital
microphone input (DMIC bit = “1”).
Addr
09H
Register Name
Timer Select
R/W
Default
D7
D6
D5
D4
D3
D2
ADRST1 ADRST0 FRATT FRN
0
0
R/W
R/W
R/W
R/W
R
R
0
0
0
0
0
0
DVTM: Output Digital Volume Soft Transition Time Setting (Table 51)
0: 816/fs (default)
1: 204/fs
This is the transition time between DVL/R7-0 bits = 00H and CCH.
MOFF: Soft Transition Control of “BEEP → Headphone” Connection ON/OFF
0: Enable (default)
1: Disable
FRN: ALC Fast Recovery Function Enable
0: Enable (default)
1: Disable
RFATT: Fast Recovery Reference Volume Attenuation Amount (Table 41)
0: -0.00106dB (4/fs) (default)
1: -0.00106dB (16/fs)
ADRST1-0: ADC Initialization Cycle Setting (Table 18)
Default: “00” (1059/fs)
D1
MOFF
R/W
0
D0
DVTM
R/W
0
016001936-E-00
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2016/03