Diodes PAM8404 User Manual

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PAM8404
Document number: DSxxxxx Rev. 1 - 1
1 of 18
www.diodes.com
November 2012
© Diodes Incorporated
PAM8404
A Product Line o
f
Diodes Incorporated
3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER
Description
The PAM8404 is a 3W high efficiency filterless Class-D audio
amplifier in 4mmX4mm and 2mmX2mm wafer chip scale (WCSP)
packages that requires few external components.
Features like 89% efficiency, -63dB PSRR, improved RF-rectification
immunity, and very small PCB area make the PAM8404 Class-D
amplifier ideal for cellular handset and PDA applications.
In cellular handsets, the earpiece, speaker phone, and melody ringer
can each be driven by the PAM8404. The PAM8404 allows
independent gain by summing signals from seperate sources, and
has as low as 43µV noise floor.
PAM8404 is available in QFN 4mmx4mm and WCSP 2mmx2mm
packages.
Features
3W Output at 10% THD with a 4 Load and 5V Supply
Supply Voltage from 2.5V to 5.5V
Efficiency Up to 89%
Superior Low Noise without Input
Few External Components to Save the Space and Cost
Short Circuit Protection
Thermal Shutdown
Space Saving Packages :
2mm X 2mmWCSP
4mm X 4mm Thin QFN
Pb-Free Packages
Applications
LCD Monitor / TV Projector
Notebook Computers
Portable Speakers
Portable DVD Players, Game Machines
Cellular Phones/Speaker Phones
Pin Assignments
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Summary of Contents

Page 1 - © Diodes Incorporated

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Page 2 - Pin Descriptions

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Page 3

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Page 4

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Page 5

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Page 6

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Page 7

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Page 8

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Page 9

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Page 10

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Page 11 - Diodes Incorporated

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Page 12 - Application Information

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Page 13

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Page 14

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Page 15 - Marking Information

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Page 16

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Page 17

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Page 18

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