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SM6451 Datasheet(PDF) 2 Page - Nippon Precision Circuits Inc

Part # SM6451
Description  Audio Variable Volume IC
PDF  12 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6451 Datasheet(HTML) 2 Page - Nippon Precision Circuits Inc

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SM6451BV
NIPPON PRECISION CIRCUITS—2
BLOCK DIAGRAM
PIN DESCRIPTION
Number
Name
I/O1
1.
Ip = input pin with pull-up, A = analog, D= digital
A/D 1
Description
1
RSTN
Ip
D
System reset input (LOW -level reset)
2
ADRS1
Ip
D
Chip address set 1
3
ADRS2
Ip
D
Chip address set 2
4
D V D D
–
D
Digital supply
5
LOUT
O
A
Left-channel audio output
6
LIN
I
A
Left-channel audio input
7
AV D D
–
A
Analog supply
8
VRL
O
A
Left-channel reference voltage (0.5VDD ). Connect a 10 µF capacitor
between VRL and AV S S .
9
VRR
O
A
Right-channel reference voltage (0.5VDD ). Connect a 10 µF capacitor
between VRR and AV S S .
1 0
AV S S
–
A
Analog ground
1 1
R I N
I
A
Right-channel audio input
1 2
R O U T
O
A
Right-channel audio output
1 3
D V S S
–
D
Digital ground
1 4
MLEN
Ip
D
Microcontroller latch enable input
1 5
M C K
Ip
D
Microcontroller clock input
1 6
M D T
Ip
D
Microcontroller data input
ROUT
LOUT
LIN
RIN
1/2VDD
MLEN
MDT
MCK
RSTN
ADRS1
ADRS2
Attenuation
Control
Attenuation
Control
AVDD
AVSS
DVDD
DVSS
VRR
VRL
1/2VDD



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