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Echo/Surround Processor

PT2398

PT2398 v1.3

Page 1

Written March 1998

Princeton Technology Corp.

Description

PT2398 is an echo/surround audio processor IC utilizing CMOS Technology and is

functionally compatible with ES56028. Equipped with ADC and DAC, it uses digital

processing to generate the delay time, which in turn, can be controlled manually or by a micro

controller. PT2398 also features an internal VCO circuit in the system clock, thereby, making

the frequency easily adjustable. The pin assignments and application circuit are optimized for

easy PCB layout and cost saving advantage.

Features

r CMOS Technology

r Least External Components

r Auto Muting Function

r Auto Reset Function

r Low Noise

r Low Distortion

r Wide Range Time Delay Settings

r Can be Controlled Manually or by Micro Controller

r External Adjustable VCO

r Very Low Operating Current (Typ. 30 mA)

Applications

r Video Tape Recorder

r Video Compact Disk

r Television

r CD Player

r Car Stereo

r KARAOKE Mixer

r Electronic Musical Instrument

r Audio Equipment with Echo/Surround Processor