ASAHI KASEI
[AK4393]
LRCK
0
1
2
22
23
24
30
31
0
1
2
22
23
24
30
31
0
1
BICK
(64fs)
SDATA
23 22
23:MSB, 0:LSB
1
0
Don’t care
23 22
1
0
Don’t care
23 22
Lch Data
Rch Data
Figure 3. Mode 2 Timing
LRCK
0
1
2
3
23
24
25
31
0
1
2
3
23
24
25
31
0
1
BICK
(64fs)
SDATA
0
1
23 22
23:MSB, 0:LSB
Don’t care
23 22
1
0
Don’t care
23
Lch Data
Figure 4. Mode 3 Timing
Rch Data
n De-emphasis filter
A digital de-emphasis filter is available for 32, 44.1, 48 or 96kHz sampling rates (tc = 50/15µs) and is enabled or disabled
with the DEM0, DEM1 and DFS input pins.
DEM1
DEM0
DFS
Mode
Default
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
0
0
0
1
1
1
1
44.1kHz
OFF
48kHz
32kHz
OFF
OFF
96kHz
OFF
Table 6. De-emphasis filter control
M0039-E-01
2000/5
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
