ak4566vn AKM Semiconductor, Inc., ak4566vn Datasheet - Page 16

• Manufacturer Part Number: ak4566vn
• Description: 20bit Stereo Codec With Built-in Ipga & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Digital High Pass Filter
The AK4566 has a Digital High Pass Filter (HPF) to cancel DC-offset in ADC and IPGA. The cut-off frequency of the
HPF is 3.4Hz at fs=44.1kHz. It also scales with the sampling frequency (fs).
REV 0.5
LRCK
BICK(64fs)
SDTO(o)
SDTI(i)
SDTI(i)
SDTI(i)
LRCK
BICK(64fs)
SDTO(o)
SDTI(i)
SDTI(i)
SDTI(i)
BICK(32fs)
SDTO(o)
SDTI(i)
16bit
18bit
20bit
16bit
18bit
20bit
0
0
0
19
15
17
19
4
0
1
1
1
18
14
16
18
19
15
17
19
19 18
15
2
2
2
18
14
16
18
14
15
3
3
4
0
2
4
16
16
8
12
4
8
3
1
3
0
2
4
17
Lch Data
17
9
11
2
0
2
3
1
3
7
18
18
10
Lch Data
10
1
1
2
0
2
6
19
19
11
AKM CONFIDENTIAL
0
0
Figure 12. Mode 2 Timing
1
1
5
Figure 13. Mode 3 Timing
9
20
20
12
0
0
8
4
Don’t Care
Don’t Care
Don’t Care
21
13
3
7
Don’t Care
Don’t Care
Don’t Care
30
30
14
2
6
- 16 -
31
31
15
5
1
0
0
0
19 18
15
17
19
4
0
1
1
1
19 18
15 14
14
16
18
19 18
15
17
19
2
2
2
14
16
18
15
3
3
4
0
2
4
16
16
8
12
3
1
3
4
0
2
4
8
17
17
Rch Data
9
11
2
0
2
3
1
3
7
18
18
10
Rch Data
10
1
1
2
0
2
6
19
19
11
0
0
1
1
9
5
20
20
12
0
0
8
4
Don’t Care
Don’t Care
Don’t Care
21
13
3
7
Don’t Care
Don’t Care
Don’t Care
30
30
14
6
2
31
31
15
[AK4566]
5
1
0
0
0
2002/2
19
15
17
19
0
4
1
1
1