ASAHI KASEI
[AK4388]
LRCK
0
1
2
22
23
24
30
31
0
1
2
22
23
24
30
31
0
1
BICK
(64fs)
SDTI
Mode 2
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)
SDTI
Mode 3
1
0
Don’t care
23 22
1
0
Don’t care
23
23 22
23:MSB, 0:LSB
Lch Data
Figure 4. Mode 3 Timing
Rch Data
De-emphasis Filter
A digital de-emphasis filter is built-in (tc = 50/15µs). DEM pin is internal pull-down pin. The digital de-emphasis filter
is enabled by setting DEM pin “H”. Refer to the section of “FILTER CHARACTERISTICS” regarding the gain error
when the de-emphasis filter is enabled.
DEM pin
De-emphasis Filter
1
0
ON
Default
OFF
Table 6. De-emphasis Filter Control
MS0485-E-01
2006/07
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
