SM6451A Datasheet, PDF (11/13 Pages) Nippon Precision Circuits Inc – Audio Variable Volume IC

SM6451A
TYPICAL APPLICATIONS
Connection Guidelines
Decoupling capacitors of approximately 10µF should be connected from AVDD, VRL, VRR to AVSS, and
from DVDD to DVSS.
In addition, approximately 0.01µF capacitors should also be connected from AVDD, VRL, VRR to AVSS, and
from DVDD to DVSS to suppress digital switch noise.
An approximately 0.001µF capacitor connected from RSTN to DVSS will force a system reset when power is
applied.
Connection 1 (to DAC)
DVDD AVDD1 to 4
LOA
LOBN
SM5864 _ROA
ROBN
DVSS AVSS1 to 4
Analog L.P.F.
Analog L.P.F.
CPU
+ 5V
DVDD AVDD
LIN
LOUT
RIN
ROUT
SM6451
ADRS1
DVSS
ADRS2
AVSS
MDT MCK MLEN
for Front
L-ch OUT
R-ch OUT
MDT MCK MLEN
ADRS1
AVDD
ADRS2
DVDD
SM6451
LIN
LOUT
RIN
AVSS
ROUT
DVSS
for Rear
L-ch OUT
R-ch OUT
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