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NCP2821 Datasheet(PDF) 2 Page - ON Semiconductor

Part No. NCP2821
Description  2.65 W Filterless with Selectable Gain Class−D Audio Amplifier
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP2821
http://onsemi.com
2
Data
Processor
GND
OUTP
Figure 1. Typical Application
OUTM
Rf
Ri
Positive
Differential
Input
INP
Rf
Ri
Negative
Differential
Input
INM
Shutdown
Control
SD
Vp
Cs
RAMP
GENERATOR
BATTERY
300 k
W
Vih
Vil
CMOS
Output
Stage
Gain
Control
Vih
Vil
GS
GS
PIN DESCRIPTION
Pin No.
Symbol
Type
Description
A1
INP
I
Positive Differential Input.
A2
GS
I
Gain Select Input.
A3
OUTM
O
Negative BTL Output.
B1
Vp
I
Power Analog Positive Supply. Range: 2.5 V – 5.5 V.
B2
Vp
I
Power Analog Positive Supply. Range: 2.5 V – 5.5 V.
B3
GND
I
Analog Ground.
C1
INM
I
Negative Differential Input.
C2
SD
I
Shutdown Input.
C3
OUTP
O
Positive BTL Output.




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