ak7746 ETC-unknow, ak7746 Datasheet - Page 58

• Manufacturer Part Number: ak7746
• Description: Audio With 5-channel 24-bit Input
• Manufacturer: ETC-unknow

3) CRC Check
4) Example of the R(x) made from D(x).
6) ADC high-pass filter
about 1 Hz (fs = 48 kHz). This cut-off frequency is proportional to the sampling frequency (fs).
[MS0369-E00]
[ASAHI KASEI]
SCLK
SCLK
RQ
SO
RQ
SO
SI
SI
Cut-off frequency
Examples
1
2
3
The AK7746 incorporates a digital high-pass filter (HPF) for canceling DC offset in the ADC. The HPF cut-off frequency is
Fig.8-33 The rest of D(x)/G(x)=R(x) CRC Check example.
10100000
D(X)
D6ABCDh
D2A5A5h
A855557777AAAA0000FFFFh
Fig.8-32 Example: Control register writing, reading
1.86Hz
B6h
96kHz
000000A9A8
D(x)
D15 *** D0
A7***A1 A0
R(x)
0.93Hz
48kHz
- 58 -
The rest (D(x)/G(x))=R(x)
D15*** D0
R(X)
1E51h
0C30h
2297h
44.1kHz
0.86Hz
D6h
Rest of D(x)/G(x)
B6h
D15 *** D0
0.62Hz
32kHz
R(x)
[AK7746]
0.16Hz
2004/12
8kHz