Datasheet

Reg 40h_ADC Digital Control Register
Default: 0x0000
Register Name: ADC_DIG_CTRL
Bit
Read/Write
Default
Description
15
R/W
0x0
ENAD
ADC Digital part enable
0: Disable
1: Enable
14
R/W
0x0
ENDM
Digital microphone enable
0: Analog ADC mode
1: Digital microphone mode
13
R/W
0x0
ADFIR32
Enable 32-tap FIR filter
0: 64-tap
1: 32-tap
12:4
R/W
0x0
Reserved
3:2
R/W
0x0
ADOUT_DTS
ADC Delay Time For transmitting data after ENAD
00:5ms
01:10ms
10:20ms
11:30ms
1
R/W
0x0
ADOUT_DLY
ADC Delay Function enable for transmitting data after ENAD
0: Disable
1: Enable
0
R/W
0x0
Reserved
Reg 41h_ADC Volume Control Register
Default: 0xA0A0
Register Name: ADC_VOL_CTRL
Bit
Read/Write
Default
Description
15:8
R/W
0xA0
ADC_VOL_L
ADC left channel volume
(-119.25dB To 71.25dB, 0.75dB/Step)
0x00: Mute
0x01: -119.25dB
………………
0x9F = -0.75dB
0xA0 = 0dB
0xA1 = 0.75dB
………………
0xFF = 71.25dB
7:0
R/W
0xA0
ADC_VOL_R
ADC left channel volume