PT2314电路图

4-Channel Input Audio Processor IC

Description

Tel : 886-2-29162151Fax : 886-2-29174598

URL: http://www.princeton.com.tw

PT2314

PT2314 is a four-channel input digital audio processor utilizing CMOS Technology.Volume, Bass, Treble and Balance are incorporated into a single chip. Loudness

Function and Selectable Input Gain are also provided to build a highly effective electronicaudio processor having the highest performance and reliability with the least externalcomponents. All functions are programmable using the I2C Bus. The pin assignments andapplication circuit are optimized for easy PCB layout and cost saving advantage foraudio application.

Features

!!!!!!!!!!! ! !

CMOS Technology

Least External ComponentsTreble and Bass ControlLoudness Function

4 Stereo Inputs with Selectable Input Gain

Input/Output for External Noise Reduction System/Equalizer2 Independent Speaker Controls for Balance ControlIndependent Mute FunctionVolume Control in 1.25 dB/stepLow Distortion

Low Noise and DC Stepping

Controlled by I2C Bus Micro-Processor InterfaceAvailable in 28 Pins, DIP/SO Package

Applications

!!

Car Stereo (Audio)Hi-Fi Audio System

Note: Purchase of I2C Component of Princeton Technology Corporation (PTC) conveys a license under Philips I2CPatent Right to use these components in any I2C System, provided that the system conforms to the I2C StandardSpecification defined by Philips

PT2314 v1.1Page 1Revised March 1999

Princeton Technology Corp.

4-Channel Input Audio Processor IC

Pin Configuration

VDDAGNDTREB_LTREB_RRINROUTLOUD_RRIN4RIN3RIN2RIN1LOUD_LLIN4LIN3123456710111213142827262524232221201918171615Tel : 886-2-29162151Fax : 886-2-29174598

URL: http://www.princeton.com.tw

PT2314

REFCLKDATADGNDOUT_LOUT_RBOUT_RBIN_RBOUT_LBIN_LLOUTLINLIN1LIN2PT2314Order Information

Valid Part Number

PT2314-DPT2314

Package Type28 Pins, DIP (300 mil)28 Pins, SO (300 mil)

PT2314 v1.1Page 2Revised March 1999

Princeton Technology Corp.

4-Channel Input Audio Processor IC

Application Circuit

R25.6KC112.2uMCUC5 2.2u+RAM/FMTuner11RIN1+R16LIN1+2718171220C13100nTel : 886-2-29162151Fax : 886-2-29174598

URL: http://www.princeton.com.tw

PT2314

C16100nC17100nC192.7n252619310uC20OUT_R23+DGND DATA CLK LOUT LIN LOUD_L BOUT_L BIN_L TREB_LC1 2.2uC6 2.2u+R CD Player10+R15C2 2.2u+RTapeC7 2.2u+RC3 2.2u+RAuxC8 2.2u+C4 2.2uR13LIN4RIN2LIN29RIN314LIN38RIN4PT2314++2.2uC10100nC12100nC14100nC1522uC910uC21OUT_L24+VDD AGND REF ROUT RIN LOUD_R BOUT_R BIN_R TREB_R465221287212VDD2.7nC185.6KR1Note: 1. It is suggested that you use Mylar Capacitor for capacitors, C12 ~ C19.

2. Resistor ( R ) Range = 2.0 K Ohms to 3.6 K Ohms3. Recommended Value of Resistor ( R ) = 2.4 K Ohms

PT2314 v1.1Page 3Revised March 1999

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