SM5816AF_06 Datasheet, PDF (14/27 Pages) Nippon Precision Circuits Inc – 6-channel DSD-PCM Converter

SM5816AF
Data Output Selection
PCM output selection
The PCM output and decimation filter processing is set using SEL8FS and SELEXT, as shown in the following
table.
Setting
SEL8FS SELEXT
L
L
L
H
H
L or H
8fs output
F8**
F8WCK
F8BCK
“0”
invalid
“0”
invalid
DSI**
8fs valid
PCM output system
2fs output
F2SLR F2FLREX1 F2CSWEX2
DSISL
DSISR
DSIFL
DSIFR
DSICT
DSISW
“0”
EXID1
EXID2
F2LRCK
F2BCK
2fs valid
EXILRCK
EXIBCK
“0”
“0”
“0”
invalid
Clock
output
CKOUT
Filter
processing
MCK
2fs
480th-order
EXIMCK
invalid
MCK
8fs
240th-order
Note. F8**: F8FL, F8FR, F8SL, F8SR, F8CT, F8SW, F8SBL, F8SBR pins
DSI**: DSIFL, DSIFR, DSISL, DSISR, DSICT, DSISW pins
I The 8fs/2fs select setting (SEL8FS) takes precedence over the 2fs output external data setting (SELEXT).
I The 8fs/2fs word clock (F8WCK, F2LRCK) and bit clock (F8BCK, F2BCK) are output, even when not
selected (“invalid”), in output mode when external input is not selected.
8-channel subwoofer/surround back output switching
The DSD output and 8fs PCM output are set using SELSBSW and SELSBR, and the subwoofer output can be
switched between surround back left and right channels.
Setting
SELSBSW
L
H
H
SELSBR
L or H
L
H
DSOSW
DSOSW
Mute Pattern
Mute Pattern
DSD output
DSOSBL
Mute Pattern
DSOSW
DSOSW
PCM output system
DSOSBR
Mute Pattern
Mute Pattern
DSOSW
F8SW
F8SW
“0”
“0”
8fs PCM output
F8SBL
“0”
F8SW
F8SW
F8SBR
“0”
“0”
F8SW
I The DSD mute output has a 50% duty “55h” continuous mute pattern.
SEIKO NPC CORPORATION —14