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Diodes Semiconductor Electronic Components Datasheet

PAM8902H Datasheet

MONO CLASS-D AUDIO AMPLIFIER

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A Product Line of
Diodes Incorporated
PAM8902H
30 VPP MONO CLASS-D AUDIO AMPLIFIER FOR PIEZO/CERAMIC SPEAKERS
Description
The PAM8902H is a mono, Class-D audio amplifier with integrated
boost convertor designed for piezo and ceramic speakers.The
PAM8902H is capable of driving a ceramic/ piezo speaker with
30Vpp(10.6Vrms) from a 3.6V power supply.The PAM8902H's Boost
converter operates at a fixed frequency of 1.5MHz , and provides a
17.5V supply with a minimum number of external components.
PAM8902H features an integrated audio low pass filter that rejects
high frequency noise thus improving audio fidelity. And three gain
modes of 21dB, 26dB and 32.5dB easy for using.PAM8902H also
provides thermal ,short, under and over voltage protection.
The PAM8902H is available in a 16-ball 1.95mm x 1.95mm CSP
package and 16-pin QFN4x4 package.
Pin Assignments
Features
Supply Voltage Range From 2.5V to 5.5V
30 VPP Output Load Voltage From a 2.5V Supply
Integrated Boost Converter Generates 17.5V Supply
Programmable Soft-Start
Small Boost Converter Inductor
Selectable Gain of 21dB, 26dB, and 32.5dB
Selectable Boost Output Voltage of 8V, 12V, and 17.5V
Low Shutdown Current: <1µA
Build in Thermal , OCP ,OVP,Short Protection
Available in Space Saving Packages:
ƒ 16-ball 1.95mmx1.95mm CSP Package
ƒ 16-pin QFN4x4 Package
Applications
ƒ Wireless or Cellular Handsets
ƒ Portable DVD Player
ƒ Personal Digital Assistants (PDAs )
ƒ Electronic Dictionaries
ƒ Digital Still Cameras
PAM8902H
Document number: DSxxxxx Rev. 1 - 0
1 of 12
www.diodes.com
December 2012
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM8902H Datasheet

MONO CLASS-D AUDIO AMPLIFIER

No Preview Available !

Typical Applications Circuit
A Product Line of
Diodes Incorporated
PAM8902H
Pin Descriptions
Pin Name
PVCC
VOUT
SW
PGND1
OUT+
VSET
COMP
AVDD
OUT-
GSET
VCM
AGND
PGND2
ENA
INN
INP
Bump (CSP)
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
D1
D2
D3
D4
Pin Number (QFN)
16
1
2
4
15
3
5
6
14
11
7
8
13
12
10
9
Function
Audio Amplifier Power Supply
Boost Convertor Output
Boost Convertor Switching Node
Boost Convertor Power Ground
Positive Differential Audio Output
Boost Convertor Output Voltage Setting (8V,12V,17.5V)
Boost Convertor compensation
Power Supply
Negative Differential Audio Output
Amplifier Gain setting ( 21dB , 26dB , 32.5dB)
Common Mode bypass Cap
Analog Ground
Class D Power Ground
Whole chip Enable
Negative Differential Audio Input
Positive Differential Audio Input
PAM8902H
Document number: DSxxxxx Rev. 1 - 0
2 of 12
www.diodes.com
December 2012
© Diodes Incorporated


Part Number PAM8902H
Description MONO CLASS-D AUDIO AMPLIFIER
Maker Diodes
Total Page 12 Pages
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