AK4636 Datasheet, PDF (82/105 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP

[AK4636]
DCLKP: Data Latching Edge Select
0: Data is latched on the DMCLK rising edge (“↑”). (default)
1: Data is latched on the DMCLK falling edge (“↓”).
DMPE: Digital Microphone Power Supply
0: Externally (the same supply as AVDD) (default)
1: DMP pin
DCLKE: DMCLK pin Output Clock Control
0: “L” Output (default)
1: 64fs Output
PMDM: Digital Microphone Power Management
0: OFF (default)
1: ON
Addr
28H
Register Name
BEEP Mode Select
R/W
Default
D7
D6
D5
D4
D3
0
0
0
0
0
R
R
R
R
R
0
0
0
0
0
BPM1-0: BEEP Mode Setting (Table 43)
Default: “00”: Disable
D2
D1
D0
0
BPM1
BPM0
R
R/W
R/W
0
0
0
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
29H Noise Suppression 1
0
NSCE NSTHH1 NSTHH0 NSTHL3 NSTHL2 NSTHL1 NSTHL0
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
1
0
0
0
0
NSTHL3-0: Noise Suppression Threshold Low Level Setting (Table 38)
Default: “0000” (-81dBFS)
NSTHH1-0: Noise Suppression Threshold High Level Setting(Table 40)
Default: “01” (NSTHL3-0 bits + 6dB)
NSCE: Noise Suppression Enable
0: Disable (default)
1: Enable
Addr Register Name
D7
D6
D5
D4
D3
D2
2AH Noise Suppression 2
0
0
NATT1 NATT0
0
0
R/W
R
R
R/W
R/W
R
R
Default
0
0
0
1
0
0
NSGAIN1-0: ALC First Recovery Speed Setting after Noise Suppression (Table 41)
Default: “01” (12 times)
NATT1-0: Noise Attenuate Step Setting (Table 39)
Default: “01” (1/2 step)
D1
NSGAIN1
R/W
0
D0
NSGAIN0
R/W
1
MS1012-E-01
- 82 -
2010/08