AK4525VF Asahi Kasei Microsystems, AK4525VF Datasheet - Page 11

• Manufacturer Part Number: AK4525VF
• Description: 20BIT STEREO ADC & DAC WITH X TAL OSC
• Manufacturer: Asahi Kasei Microsystems

ASAHI KASEI
n Digital High Pass Filter
The ADC of AK4525 has a digital high pass filter for DC offset cancel. The cut-off frequency of the HPF is 0.9Hz at
fs=44.1kHz and also scales with sampling rate (fs).
MS0053-E-00
LRCK(i)
SCLK(i:64fs)
SDTO(o)
SDTI(i)
LRCK(i)
SCLK(i:32fs)
SDTO(o)
SDTI(i)
SCLK(i:64fs)
SDTO(o)
SDTI(i)
0
0
0
19:MSB, 0:LSB
19
19
4
1
1
1
18
18
19
19
19 18
19:MSB, 0:LSB
2
2
2
18
18
3
3
3
3
17
12 11
4
4
2
2
18
17
Lch Data
9
1
1
3
3
Lch Data
19
10
18
10
2
0
0
2
20
11
19
1
1
Figure 4. Mode 2 Timing
Figure 5. Mode 3 Timing
9
21
12
20
Don’t Care
0
8
0
13
21
7
Don’t Care
14
- 11 -
6
15
31
5
0
0
0
19 18
23
4
1
1
1
22
19
19
19 18
2
2
2
18
18
3
3
3
17
12 11
2
2
4
4
18
Rch Data
17
9
3
1
1
3
Rch Data
19
10
18
10
0
2
0
2
20
19
11
9
1
1
21
12
20
Don’t Care
0
8
0
13
21
7
Don’t Care
14
6
15
31
[AK4525]
5
0
0
0
2000/9
19
19
4
1
1
1