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PAM8404 Datasheet

3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER

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A Product Line of
Diodes Incorporated
PAM8404
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.
Pin Assignments
Features
3W Output at 10% THD with a 4Load 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
PAM8404
Document number: DSxxxxx Rev. 1 - 1
1 of 18
www.diodes.com
November 2012
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM8404 Datasheet

3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER

No Preview Available !

Typical Applications Circuit
A Product Line of
Diodes Incorporated
PAM8404
Pin Descriptions
Pin
Name
G1
OUTL+
PVDD
PGND
OUTL-
NC
SDL
SDR
AVDD
OUTR-
OUTR+
G0
INR+
INR-
AGND
INL-
INL+
Pin Number
QFN4x4
WCSP2x2
1 B2
2 A3
313 A2
412 C4
5 A4
610 —
7 B4
8 B3
9 D2
11 D4
14 D3
15 C2
16 D1
17 C1
18 C3
19 B1
20 A1
Function
Gain Select (MSB)
Left Channel Positive Differential Output
Power Supply (Must be Same Voltage as AVDD)
Power Ground
Left Channel Negative Differential Output
Not Connected
Left Channel Shutdown Terminal (active low)
Right Channel Shutdown Terminal (active low)
Analog Supply (Must be Same Voltage as PVDD)
Right Channel Negative Differential Output
Right Channel Positive Differential Output
Gain Select (LSB)
Right Channel Positive Input
Right Channel Negative Input
Analog Ground
Left Channel Negative Input
Left Channel Positive Input
PAM8404
Document number: DSxxxxx Rev. 1 - 1
2 of 18
www.diodes.com
November 2012
© Diodes Incorporated


Part Number PAM8404
Description 3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER
Maker Diodes
Total Page 18 Pages
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