UNISONIC TECHNOLOGIES CO., LTD

PA3431

CMOS IC

www.unisonic.com.tw

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Copyright © 2008 Unisonic Technologies Co., Ltd

QW-R502-185.A

2W STEREO AUDIO AMPLIFIER

DESCRIPTION

As a stereo audio speaker which is operating on a single 5V

supply, the UTC PA3431 is capable of delivering 2W of output

power per channel into 4Ω loads in Bridge-Tied Load (BTL) mode

with less than 1% THD+N. Way of two terminals (GAIN0 and

GAIN1) can configured and control the amplifier gain. It also

provided BTL gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB

(inverting). Other features: the SHDN mode is supported to disable

UTC PA3431 for the low current consumption applications; the

current consumption can be reduced to typically 150µA.

FEATURES

* 2W Output power into 4Ω load from 5V supply each channel

* Gain control internally

* Differential input fully

* Depop circuitry

* Shutdown protection thermally

*Pb-free plating product number: PA3431L

ORDERING INFORMATION

Ordering Number

Normal

Lead Free Plating

Package

Packing

PA3431-N20-R

PA3431L-N20-R

HTSSOP-20

Tape Reel

PA3431-N20-T

PA3431L-N20-T

HTSSOP-20

Tube