AK4341 Datasheet, PDF (10/18 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

ASAHI KASEI
[AK4341]
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 1. Mode 0 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 22
23:MSB, 0:LSB
Lch Data
Figure 2. Mode 1 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. 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
H
L
De-emphasis Filter
ON
OFF
Table 3. De-emphasis Filter Control (Normal Speed Mode)
MS0558-E-01
- 10 -
2007/03