UNISONIC TECHNOLOGIES CO., LTD

PA3428

CMOS IC

www.unisonic.com.tw

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Copyright © 2008 Unisonic Technologies Co., Ltd

QW-R502-242.A

2W STEREO AUDIO

AMPLIFIER

DESCRIPTION

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

supply, the UTC PA3428 is capable of delivering 2W of output

power per channel into 4Ω loads with less than 1% THD+N.

Way of two terminals (GAIN0 and GAIN1) can configured and

control the amplifier gain. It also provide gain settings of 2, 6, 12,

and 24V/V.

Other features include internal gain control which requires few

external components, an active-low shutdown mode input and

thermal shutdown protection.

FEATURES

* Internal Depop circuitry

* Output power at 1% THD+N

Supply voltage:5V

Delivering 2.0W into a 4Ω load

Delivering 1.2W into a 8Ω load

* Tow mode:

Bridge-tied Load (BTL),

Single-ended (SE)

* Stereo input signal

* Fully differential input

* Gain control Internally

* Differential Input fully

Lead-free:

PA3428L

Halogen-free: PA3428G

ORDERING INFORMATION

Ordering Number

Normal

Lead Free

Halogen Free

Package

Packing

PA3428-N24-R

PA3428L-N24-R

PA3428G-N24-R

TSSOP-24

Tape Reel

PA3428-N24-T

PA3428L-N24-T

PA3428G-N24-T

TSSOP-24

Tube