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SM6451AT Datasheet(PDF) 2 Page - Nippon Precision Circuits Inc

Part # SM6451AT
Description  Audio Variable Volume IC
PDF  13 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

SM6451AT Datasheet(HTML) 2 Page - Nippon Precision Circuits Inc

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SM6451A
SEIKO NPC CORPORATION —2
BLOCK DIAGRAM
PIN DESCRIPTION
Number
Name
I/O1
1.
Ip = input pin with pull-up, A = analog, D= digital
A/D1
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
DVDD
–
D
Digital supply
5
LOUT
O
A
Left-channel audio output
6
LIN
I
A
Left-channel audio input
7
AVDD
–
A
Analog supply
8
VRL
O
A
Left-channel reference voltage (0.5VDD). Connect a 10µF capacitor
between VRL and AVSS.
9
VRR
O
A
Right-channel reference voltage (0.5VDD). Connect a 10µF capacitor
between VRR and AVSS.
10
AVSS
–
A
Analog ground
11
RIN
I
A
Right-channel audio input
12
ROUT
O
A
Right-channel audio output
13
DVSS
–
D
Digital ground
14
MLEN
Ip
D
Microcontroller latch enable input
15
MCK
Ip
D
Microcontroller clock input
16
MDT
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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