AK4695 Datasheet, PDF (92/107 Pages) Asahi Kasei Microsystems – 24bit 4ch CODEC with MIC/HP/SPK/LINE-AMP

[AK4695]
Addr
34H
Register Name
NS On Level
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
NSIAF1 NSIAF0
0
NSTHL4 NSTHL3 NSTHL2 NSTHL1 NSTHL0
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
1
0
0
0
0
0
0
0
NSTHL4-0: Noise Suppression Threshold Low Level Setting (Table 41)
Default: “00H” (-36dB)
NSIAF1-0: Moving Avarage Parameter Setting at Noise Suppression Off (Table 40)
Default: “10” (1024/fs)
Addr
35H
Register Name
NS Off Level
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
NSOAF1 NSOAF0
0
NSTHH4 NSTHH3 NSTHH2 NSTHH1 NSTHH0
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
1
0
0
0
0
0
0
0
NSTHH4-0: Noise Suppression Threshold High Level Setting (Table 45)
Default: “00H” (-36dB)
NSOAF1-0: Moving Avarage Parameter Setting at Noise Suppression ON (Table 44)
Default: “10” (16/fs)
Addr
36H
Register Name
NS Reference Select
R/W
Default
D7
D6
D5
D4
0
0
0
0
R
R
R
R
0
0
0
0
NSREF3-0: Noise Suppression Reference Level Setting (Table 42)
Default: “0H” (-9dB)
D3
NSREF3
R/W
0
D2
NSREF2
R/W
0
D1
NSREF1
R/W
0
D0
NSREF0
R/W
0
Addr
37H
38H
39H
3AH
3BH
3CH
3DH
3EH
Register Name
NS LPF Co-efficient 0
NS LPF Co-efficient 1
NS LPF Co-efficient 2
NS LPF Co-efficient 3
NS HPF Co-efficient 0
NS HPF Co-efficient 1
NS HPF Co-efficient 2
NS HPF Co-efficient 3
R/W
Default
D7
NSLA7
0
NSLB7
0
NSHA7
0
NSHB7
0
R/W
0
D6
NSLA6
0
NSLB6
0
NSHA6
0
NSHB6
0
R/W
0
D5
NSLA5
NSLA13
NSLB5
NSLB13
NSHA5
NSHA13
NSHB5
NSHB13
R/W
0
D4
NSLA4
NSLA12
NSLB4
NSLB12
NSHA4
NSHA12
NSHB4
NSHB12
R/W
0
D3
NSLA3
NSLA11
NSLB3
NSLB11
NSHA3
NSHA11
NSHB3
NSHB11
R/W
0
D2
NSLA2
NSLA10
NSLB2
NSLB10
NSHA2
NSHA10
NSHB2
NSHB10
R/W
0
D1
NSLA1
NSLA9
NSLB1
NSLB9
NSHA1
NSHA9
NSHB1
NSHB9
R/W
0
D0
NSLA0
NSLA8
NSLB0
NSLB8
NSHA0
NSHA8
NSHB0
NSHB8
R/W
0
NSLA13-0, NSLB13-0: Noise Suppression LPF Coefficient (14bit x 2)
Default: “0000H”
NSHA13-0, NSHB13-0: Noise Suppression HPF Coefficient (14bit x 2)
Default: “0000H”
MS1463-E-01
- 92 -
2014/12