PA3427

UNISONIC TECHNOLOGIES CO., LTD PA3427 Preliminary 2W STEREO AUDIO AMPLIFIER CMOS IC  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  ORDERING INFORMATION Ordering Number PA3427G-N24-R Package HTSSOP-24 Packing Tape Reel PA3427G-N24-R  MARKING (1)Packing Type (2)Package Type (3)Green Package (1) R: Tape Reel (2) N24: HTSSOP-24 (3) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-357.b PA34...