SM5846AP_06 Datasheet, PDF (15/36 Pages) Nippon Precision Circuits Inc – Multi-function Digital Filter

SYSTEM CONFIGURATION
SM5846AP
DIN
BCKI
LRCI
DSP
Setting
+5V
DOR
DOL
BCKO
WCKO
Setting
+5V
Oscilation
Control
DATA FLOW
ATT1/ATT2 soft muting uses the D-ATT function to set the gain to −∞.
Normal-speed Sampling (fs = 32/44.1/48kHz)
DAC
Reset Circuits
FIRI
DEMI
DLY
ATT1
FIR2
FIR3
IN
fs
(fs)
LPF 2fs
(×2)
2fs
2fs
SWa (121 order)
2fs
2fs
2fs
2fs LPF 4fs LPF 8fs
(×2)
(×2)
2fs
4fs
(D-ATT / Soft Mute) (21 order)
8fs
(13 order)
OUT
(8fs)
High-speed Sampling (fs = 64/88.2/96kHz)
FIR4
FIR5
DEM2
ATT2
FIR6
fs
IN
LPF _2fs LPF
4fs
(×2)
(×2)
4fs
4fs ^LPF
(×2)
8fs
(fs)
2fs
4fs
4fs
4fs
8fs
SWb(177 order)
(29 order)
SWd(ON / OFF)
(D-ATT / Soft Mute)
(17 order)
8fs/4fs _OUT
SWg ( 8fs / 4fs )
( 8fs / 4fs )
4fs
SEIKO NPC CORPORATION —15