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PA3427

Unisonic Technologies
Part Number PA3427
Manufacturer Unisonic Technologies
Description 2W STEREO AUDIO AMPLIFIER
Published Feb 2, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD PA3427 Preliminary 2W STEREO AUDIO AMPLIFIER CMOS IC  DESCRIPTION The UTC PA3427 i...
Datasheet PDF File PA3427 PDF File

PA3427
PA3427

Overview
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 PA3427  PIN CONFIGURATION GND/HS GAIN0 GAIN1 LOUT+ LLINEIN LPHIN PVDD RIN LOUTLIN BYPASS GND/HS 1 2 3 4 5 6 7 8 9 10 11 12 Preliminary PA3427 24 GND/HS 23 RLINEIN 22 SHUTDOWN 21 ROUT+ 20 RHPIN 19 VDD 18 PVDD 17 HP/LINE 16 ROUT- 15 SE/BTL 14 PC-BEEP 13 GND/HS CMOS IC  PIN DESCRIPTION PIN NO 1,12,13,24 2 3 4 5 6 7,18 8 9 10 11 PIN NAME GND/HS GAIN0 GAIN1 LOUT+ LLINEIN LHPIN PVDD RIN LOUTLIN BYPASS 14 PC-BEEP 15 SE/ BTL 16 ROUT- 17 HP/ LINE 19 VDD 20 RHPIN 21 ROUT+ 22 SHUTDOWN 23 RLINEIN ...


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