PA3427

DESCRIPTION

The UTC PA3427 is a stereo audio speaker operated on a single

5V supply. It is capable of delivering 2W of output power per channel

in Bridge-Tied Load mode into 4Ω load with less than 1% THD+N.

Two terminals (GAIN0 and GAIN1) can configure and control the

amplifier gain. In order to simplify the design of audio system in the

notebook application, the two modes of Bridge-Tied Load (BTL) and

Single-End (SE) mode drive the speakers and headphone

respectively. The UTC PA3427 supports two input paths to choose

two different amplitude AC signals through setting HP/ LINE pin.

The UTC PA3427 is suitable for applications, such as stereo

power amplifiers of notebooks or desktop computers, and multimedia

monitors.

FEATURES

* Depop circuitry integrated

* BTL gain: 6dB, 10dB, 15.6dB, 21.6dB

* SE gain: 4.1dB

* Output power (THD+N:1%, supply voltage:5V)

− 2.0W into a 4Ω load

− 1.2W into a 8Ω load

* With two mode :BTL and SE

* Stereo input multiplexer

* Fully differential input

* Build-in gain control

* PC-Beep input function

* Thermal shutdown protection

规格书PA3427