AK4490EN Datasheet, PDF (40/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490EN]
1/(16fs) or 1/(8fs) or 1/(4fs) or 1/(2fs)
WCK
01
BCK
(32WCK)
DINL or
DINR
BCK
(48WCK)
31 30
01
DINL or
DINR
BCK
(96WCK)
DINL or
DINR
Don’t care
01
Don’t care
8 9 10 11
16 17
24 23 22 21 20 17 16 15 14
13 14 15 16
23 24 25
Don’t care 31
5678
47 48 49
Don’t care
Don’t care
26 27 28 29 30 31 0 1
654 321 0
44 45 46 47 0 1
3 2 1 0 Don’t care
65
92 93 94 95 0 1
31
3 2 1 0 Don’t care
31: MSB, 0:LSB
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
Figure 21. D/A Mode Switching Timing (DSD to PCM)
PCM Data
Note 29. 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).
015013666-E-01
- 40 -
2015/12