[AK4492]
Table 3. Function List of PCM/EXDF/DSD Mode @Register Control Mode
(Y: Available, N/A: Not available)
Function
Default
Addr
00H
02H
02H
Bit
PCM EXDF DSD
EXDF
DP
DCKS
PCM/DSD/EXDF Mode Select
PCM mode
Y
-
Y
-
Y
Y
-
System clock setting @DSD mode
Systemclock setting @ EXDF mode
256fs
16fs
(fs = 44.1 kHz)
00H
09H
ECS
-
Y
-
-
Digital Filter select @ DSD mode
Digital Filter select @ PCM mode
39 kHz filter
DSDF
Y
Short delay
sharp roll off
filter
SD
SLOW
SSLOW
DEM[1:0]
DSDD
-
-
01-02-05H
Y
-
-
-
Y
De-emphasis Response
Path select @ DSD mode
Audio Data Interface Format
@ PCM Mode
Audio Data Interface Format
@ EXDF Mode
Off
01H
06H
Y
-
Normal Path
-
-
-
32 bit MSB
32 bit LSB
00H
00H
DIF[2:0]
DIF[2:0]
Y
-
Y
TDM Interface Format
Daisy Chain
Attenuation Level
Data Zero Detect Enable
Inverting Enable of DZF
Mono/Stereo mode select
Data Invert mode select
The data selection of L channel and
R channel
Normal Mode
Normal Mode
0 dB
Disable
“H” active
Stereo
0AH
0BH
03-04H
01H
02H
02H
TDM[1:0]
DCHAIN
ATT[7:0]
DZFE
DZFB
MONO
INVL/R
Y
Y
Y
Y
Y
Y
Y
-
-
-
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Off
05H
R channel
Disable
02H
06H
01H
SELLR
DDM
Y
-
Y
-
Y
Y
Y
DSD Mute Function @ Full scale
Detected
Normal
Operation
Reset
Soft Mute Enable
SMUTE
Y
Y
Reset
00H
07H
RSTN
SYNCE
Y
Y
Y
Y
Y
-
Clock Synchronization Function
Enable
016011073-E-00
2016/12
- 37 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
