ASAHI KASEI
[AK4341]
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 1. Mode 0 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 2. Mode 1 Timing
Rch Data
■ De-emphasis Filter
A digital de-emphasis filter is built-in (tc = 50/15µs). DEM pin is internal pull-down pin. Setting DEM pin “H” enables
the digital de-emphasis filter. Refer to the section of “FILTER CHARACTERISTICS” regarding the gain error when the
de-emphasis filter is enabled. De-emphasis filter is off when double/quad speed mode.
DEM pin
De-emphasis Filter
H
L
ON
OFF
Table 3. De-emphasis Filter Control (Normal Speed Mode)
MS0558-E-01
2007/03
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
