[AK5357]
LRCK
0 1
2
20 21 22 23 24
4 3 2 1 0
31 0 1 2
23 22
20 21 22 23 24
4 3 2 1 0
31 0 1
SCLK(64fs)
SDTO(o)
23 22
23:MSB, 0:LSB
23
Lch Data
Figure 1. Mode 0 Timing
Rch Data
LRCK
0 1 2
3
21 22 23 24 25
0 1
2
21 22 23 24 25
4 3 2 1 0
0 1
SCLK(64fs)
SDTO(o)
23 22
4 3 2 1 0
23 22
23:MSB, 0:LSB
Lch Data
Figure 2. Mode 1 Timing
Rch Data
■ Digital High Pass Filter
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 (Table 2). If HPF setting (ON/OFF) is changed when the AK5357 is in operation, click
noise occurs by changing DC offset. It is recommended that HPF setting is changed when the PDN pin = “L”.
MS0294-E-03
2009/03
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
