AK4490 Datasheet, PDF (39/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
1/16fs or 1/8fs or 1/4fs or 1/2fs
WCK
BCK
01
8 9 10 11
16 17
26 27 28 29 30 31 0 1
DINL or
DINR
BCK
DINL or
DINR
BCK
DINL or
DINR
31 30
01
24 23 22 21 20 17 16 15 14
5678
47 48 49
Don’t care
01
Don’t care
5678
Don’t care
23 24 25
Don’t care
Don’t care
Don’t care
654 321 0
65
92 93 94 95 0 1
31
17
3 2 1 0 Don’t care
44 45 46 47 0 1
31
3 2 1 0 Don’t care
Figure 19. EX DF I/F Mode Timing
■ D/A Conversion Mode Switching Timing
RSTN bit
D/A Mode
D/A Data
4/fs
PCM Mode
DSD Mode
0
PCM Data
DSD Data
Figure 20. D/A Mode Switching Timing (PCM to DSD)
RSTN bit
D/A Mode
D/A Data
DSD Mode
PCM Mode
4/fs
DSD Data
PCM Data
Figure 21. D/A Mode Switching Timing (DSD to PCM)
Note. The signal range is identified as 25% ~ 75% duty ratios in DSD mode. DSD signal must not go beyond
this duty range at the SACD format book (Scarlet Book).
MS1648-E-03
- 39 -
2014/11