AK5356 Datasheet, PDF (13/22 Pages) Asahi Kasei Microsystems – LOW POWER 20BIT ADC WITH MIC AMP & PGA

ASAHI KASEI
[AK5356]
LRCK(i)
01 23
BCLK(i:64fs)
SDTO(o)
19 18
17 18 19 20 21
4 32 10
31 0 1 2 3
17 18 19 20 21
19 18
43 2 10
31 0 1
0 1 2 3 8 9 10 11 12 13 14 15 0 1 2 3 8 9 10 11 12 13 14 15 0 1
BCLK(i:32fs)
SDTO (o)
4 19 18
12 11 10 9 8 7 6 5 4 19 18
12 11 10 9 8 7 6 5 4
Lch Data
19:MSB, 0:LSB
Rch Data
Figure 8. Audio Data Timing (No.1)
n Digital High Pass Filter
The AK5356 has a Digital High Pass Filter (HPF) to cancel DC-offset in both the IPGA and ADC. The cut-off frequency
of the HPF is 3.4Hz at fs=44.1kHz. This cut-off frequency scales with the sampling frequency (fs). And the HPF can select
ON/OFF by HPF bit.
MS0171-E-00
- 13 -
2002/08