Tel : 886-2-29162151Fax : 886-2-29174598
URL: http://www.princeton.com.tw
Echo/Surround Processor PT2398
Description
PT2398 is an echo/surround audio processor IC utilizing CMOS Technology and isfunctionally 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 microcontroller. PT2398 also features an internal VCO circuit in the system clock, thereby, makingthe frequency easily adjustable. The pin assignments and application circuit are optimized foreasy PCB layout and cost saving advantage.
Features
r CMOS Technology
r Least External Componentsr Auto Muting Functionr Auto Reset Functionr Low Noiser Low Distortion
r Wide Range Time Delay Settings
r Can be Controlled Manually or by Micro Controllerr External Adjustable VCO
r Very Low Operating Current (Typ. 30 mA)
Applications
r Video Tape Recorderr Video Compact Diskr Televisionr CD Playerr Car Stereo
r KARAOKE Mixer
r Electronic Musical Instrument
r Audio Equipment with Echo/Surround Processor
PT2398 v1.3Page 1Written March 1998
Princeton Technology Corp.
Block Diagram
Tel : 886-2-29162151Fax : 886-2-29174598
URL: http://www.princeton.com.tw
Echo/Surround Processor PT2398
Pin Configuration
PT2398 v1.3Page 2Written March 1998
Princeton Technology Corp.
PT2398 Echo Application Circuit
Tel : 886-2-29162151Fax : 886-2-29174598
URL: http://www.princeton.com.tw
Echo/Surround Processor PT2398
PT2398 v1.3Page 7Written March 1998
Princeton Technology Corp.
PT2398 Application Circuit (ERSO-compatible)
Tel : 886-2-29162151Fax : 886-2-29174598
URL: http://www.princeton.com.tw
Echo/Surround Processor PT2398
Note: The performance of PT2398 in this application circuit is similar to ES56033
PT2398 v1.3Page 8Written March 1998
Princeton Technology Corp.
PT2398 Surround Application Circuit
5600pFTel : 886-2-29162151Fax : 886-2-29174598
URL: http://www.princeton.com.tw
Echo/Surround Processor PT2398
15K4.7uFInput100K+5V47uF20KR+5V+5V1234567891011121314282726252423222120191817161510K560pF12K10uF560pF15K10K0.047uF15K5600pF3KOutput0.047uF7.5K75K7.5K0.01uF0.33uF0.33uF75K0.01uFPT2398PT2398 v1.3Page 9Written March 1998
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