AK5357ET AKM [Asahi Kasei Microsystems], AK5357ET Datasheet - Page 12

• Manufacturer Part Number: AK5357ET
• Description: 24Bit 96kHz ?? ADC
• Manufacturer: AKM [Asahi Kasei Microsystems]

■
The ADC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 1.0Hz
(@fs=48kHz) and scales with sampling rate (fs).
HPF is controlled by CKS2-0 pins
noise occurs by changing DC offset. It is recommended that HPF setting is changed when the PDN pin = “L”.
MS0294-E-02
Digital High Pass Filter
LRCK
SCLK(64fs)
SDTO(o)
LRCK
SCLK(64fs)
SDTO(o)
0
0
23 22
23:MSB, 0:LSB
1 2
1 2
23 22
23:MSB, 0:LSB
3
(Table
4
20 21
4
Lch Data
3 2 1
2). If HPF setting (ON/OFF) is changed when the AK5357 is in operation, click
21
Lch Data
3 2 1
22 23
22 23
Figure 1. Mode 0 Timing
Figure 2. Mode 1 Timing
0
24
24
0
25
- 12 -
31 0 1 2
0 1 2
23 22
23 22
4
20 21
Rch Data
4
3
21
Rch Data
3
2
22
22
2
1
23
23
1
0
24
24
0
25
31
[AK5357]
0
0
23
2007/11
1
1