AK4388 Datasheet, PDF (10/18 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 2ch ΔΣ DAC

ASAHI KASEI
[AK4388]
LRCK
BICK
(64fs)
SDTI
Mode 2
01
2
22 23 24
30 31 0 1
2
23 22
1 0 Don’t care
23:MSB, 0:LSB
Lch Data
23 22
Figure 3. Mode 2 Timing
22 23 24
30 31 0 1
1 0 Don’t care
Rch Data
23 22
LRCK
BICK
(64fs)
SDTI
Mode 3
0123
23 24 25
31 0 1 2 3
23 22
1 0 Don’t care
23:MSB, 0:LSB
Lch Data
23 22
Figure 4. Mode 3 Timing
23 24 25
31 0 1
1 0 Don’t care
23
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
1
0
De-emphasis Filter
ON
OFF
Default
Table 6. De-emphasis Filter Control
MS0485-E-01
- 10 -
2006/07