Datasheet > PT2335-L

PT2335-L

更新时间： 2024-09-16 11:49:03

品牌	Logo	应用领域
普诚科技 - PTC		音频放大器
页数	文件大小	规格书
5页	244K
描述
2W X 2 Stereo Integrated Audio Amplifier

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PT2335-L 数据手册

Preliminary

PT2335

2W X 2 Stereo Integrated Audio Amplifier

DESCRIPTION

FEATURES

The PT2335 is an integrated audio amplifier design for

the low voltage (5V) application purpose, built-in

stereo 2W Class-D power amplifier with audio

processor, it provides 4 stereo sources selector, and

all signal process is based on pure analog processing

to maintain high performances and low power

consumption. The audio processor includes all the

advanced control functions such like digital controlled

volume, adaptive loudness, treble and bass control. It

also provides line output for versatile application. The

whole chip functions are controlled via I²C bus.

•

Supply voltage: 3 ~ 6V

4 Stereo inputs

Input gain selectable (0dB, 3.75dB, 7.5dB,

11.25dB)

•

Independent channel volume controller

Loudness function

Bass and treble control.

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

RL=4Ω)

•

2 voltage gain setting for power amp (20dB, 26dB)

Internal and external oscillator selectable

Dual switching frequency for avoid AM radio

interference

APPLICATIONS

•

Pop-Free circuitry eliminates unpleasant noises

during power ON/OFF.

•

Portable player duck speaker system

Portable media player

Digital photo frame

Flat panel display and TV

Other audio applications

•

Low power shutdown

High PSRR

Over heat/over current protection circuitry

Controlled by I²C interface

High power CMOS processing

LQFP 48 pins package

BLOCK DIAGRAM

RGOUT

RIN

LOUDR

RB2

RB1

INPUT

GAIN

VOLUME

TREBLE

BASS

ROUT

RINP

RINN

RVDD

RCH 2W

VDD

BYPASS

GND

CLASS-D

INT OSC

ROP

RON

RGND

AVDD

AGND

CLOCK SEL

OSC3

OSC2

OSC1

EXT OSC

LGND

LON

LOP

Control

Interface

SDA

SCL

LCH 2W

LVDD

LINN

LINP

CLASS-D

INPUT

GAIN

VOLUME

TREBLE

BASS

LOUT

LGOUT

LIN

LOUDL

LB2

LB1

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

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