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PAM8404

3W Stereo Class D with Separate Shutdown Control

Datasheet

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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.

Feature(s)

3W Output at 10% THD with a 4Ω 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

Application(s)

LCD Monitor / TV Projector
Notebook Computers
Portable Speakers
Portable DVD Players, Game Machines
Cellular Phones/Speaker Phones

Product Specifications

Product Parameters

Minimum VDD (V)	2.5
Compliance (Only Automotive supports PPAP)	Standard
AEC Qualified	No
Maximum V_DD (V)	5.5 V
I_{Q (mA)}	11 mA
Power/CH (W) @ THD=10%	3
Power/CH (W) @ THD=1%	2.4
Mono or Stereo	Stereo
BTL	Yes
SE	No
Class-D or AB	D
Power Limit	No
Anti-Sat	No
Headphone Out	No
Efficiency (%)	89 %
Volume/ Gain	4-Settings
Gain Min	6 dB
Gain Max	24 dB
SNR	87 dB
PSRR	63 dB
Special Feature	N/A

Technical Documents

Recommended Soldering Techniques

TN1.pdf