UNISONIC TECHNOLOGIES CO., LTD

PA6203

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 6

Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-A16.a

1.25-W MONO FULLY

DIFFERENTIAL AUDIO POWER

AMPLIFIER



DESCRIPTION

The UTC PA6203 is a mono fully-differential audio amplifier,

capable of delivering 1.25W of continuous average power to an 8-Ω

BTL load with less than 1% distortion from a 5V power supply.

The UTC PA6203 is ideal for PDA/smart phone applications due to

features such as -85-dB supply voltage rejection from 90Hz to 5kHz,

improved RF rectification immunity and a fast start-up with minimal pop.

The device operates from 2.5V to 5.5V, drawing only 1.7mA of

quiescent supply current.



FEATURES

* 1.25W into 8Ω from a 5-V supply at THD=1% (Typ.)

* 2.5V-5.5V operation

* Low supply current: 1.7mA typ at 5V

* Shutdown Control<10µA

* Only five external components

- Improved PSRR (90dB) for direct battery operation

- Fully differential design reduces RF rectification

- Improved CMRR eliminates two input coupling capacitors



APPLICATIONS

* Designed for wireless or cellular handsets and PDAs



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

PA6203L-SH2-T

PA6203G-SH2-T

HSOP-8

Tube

PA6203L-SH2-R

PA6203G-SH2-R

HSOP-8

Tape Reel

PA6203L-SH2-T

(1)Packing Type

(2)Package Type

(1) T: Tube, R: Tape Reel

(2) SH2: HSOP-8

(3) L: Lead Free, G: Halogen Free

(3)Halogen Free