Datasheet > PT2334

PT2334

更新时间： 2024-09-16 11:50:47

品牌	Logo	应用领域
普诚科技 - PTC		放大器
页数	文件大小	规格书
4页	151K
描述
Stereo 2W Class-D Amplifier with Built-In Audio Processor

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PT2334 数据手册

PT2334

Stereo 2W Class-D Amplifier with Built-In

Audio Processor

DESCRIPTION

FEATURES

The PT2334 is an integrated stereo 2W Class-D

amplifier accompany with a Class-AB headphone

driver. The input interface accepts both analog and

digital audio sources; the chip included a 16-bit DAC to

convert digital audio source to analog signal. The

signal process is basically in analog domain to

maintain the high performances and low power

consumption. The PT2334 also provide very useful

multi-sources selection (Up to 4 sources) and tone

control functions, thanks for the advanced CMOS

technology now we could combine both audio

processing and amplification into a single chip. The

whole chip functions are controlled via I²C bus.

•

Supply Voltage: 3.7~6V

Differential input power amplifier for improved

CMRR.

•

2W X 2 Class-D power amplifier (VDD=5V,

RL=4Ω)

•

70mW X 2 Class-AB headphone driver (RL=32Ω)

BASS and TREBLE control

32 steps volume controller

4 Inputs selection

Audio line out (same level with volume and tone)

Built-In 16 bits DAC for digital audio sources

Pop-Free circuitry eliminates unpleasant noises

during power ON/OFF.

•

Low power shutdown

Over Heat/Over current protection circuitry

APPLICATIONS

Controlled by I²C interface

•

Flat panel display and TV

Portable media player

High Power CMOS processing

Available in 48 Pins, LQFP

Portable player ducking system

Digital photo frame

Other audio applications

BLOCK DIAGRAM

DACRO

RB2

RB1

ROUT

HVDD

RHPO

RINP RINN

TREBLE

RCH

BASS

RCH

SDI

LRCI

BCKI

HPR

16-Bit

DAC

LRCI

BCKI

R-VOL

SPR

RVDD

RGND

ROP

RON

RCH 2W

CLASS-D

Vref

Bypass

VDDA

GNDA

BYPASS

AVDD

AGND

Power

Management

Vref

SPL

LGND

LVDD

LCH 2W

LON

LOP

Vref

SDA

CLASS-D

SDA

L-VOL

Control

SCL

Interface

HPL

HPEN

TREBLE

LCH

BASS

LCH

DACLO

LB2

LB1

LOUT

HGND

LHPO

LINP LINN

Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan

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