AK4356 Datasheet, PDF (14/29 Pages) Asahi Kasei Microsystems – 192kHz 24 Bit IX-CHANNEL DAC FOR DVD-AUDIO

ASAHI KASEI
[AK4356]
n Audio Serial Interface Format
Audio data is input to the AK4356 via the SDTI1-3 pins using BICK and LRCK inputs. 5 serial data formats are supported
and selected by DIF2-0 pins or DIF2-0 bits (See Table 3, compatible with the AK4324/4393). In all modes the serial data
is MSB-first, 2’s compliment format and is latched on the rising edge of BICK. Mode 2 can be used for 20 and 16 MSB
justified formats by zeroing the unused LSBs.
Mode
0
1
2
3
4
DIF2
0
0
0
0
1
DIF1
0
0
1
1
0
DIF0
SDTI
L/R
0 16bit, LSB justified H/L
1 20bit, LSB justified H/L
0 24bit, MSB justified H/L
1
I2S
L/H
0 24bit, LSB justified H/L
Table 3. Audio data format
BICK
³32fs
³40fs
³48fs
32fs or ³48fs
³48fs
Figure
Figure 1
Figure 2
Figure 3
Figure 4
Figure 2
default
LRCK
BICK
(32fs)
SDTI
Mode 0
BICK
(64fs)
SDTI
Mode 0
01
10 11 12 13 14 15 0 1
15 14
01
6 5 4 3 2 1 0 15 14
14 15 16 17
31 0 1
Don’t care
15 14
15:MSB, 0:LSB
Lch Data
0 Don’t care
10 11 12 13 14 15 0 1
6 5 4 3 2 1 0 15 14
14 15 16 17
31 0 1
15 14
0
Rch Data
Figure 1. Mode 0 Timing
M0072-E-01
- 14 -
1999/09