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PDF PT2390 Data sheet ( Hoja de datos )
| Número de pieza | PT2390 | |
| Descripción | Echo IC with Built-in Microphone Amplifier & Output Mixer | |
| Fabricantes | Princeton Technology Corp | |
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Hay una vista previa y un enlace de descarga de PT2390 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Princeton Technology Corp.
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Echo IC with Built-in Microphone Amplifier & Output Mixer PT2390
DESCRIPTION
PT2390 is a digital echo IC utilizing CMOS Technology. Microphone Amplifier, Output Mixer, internal
44K RAM and Vocal Switch are all integrated in a single chip to provide a digital echo IC of the the highest
standard. Very low distortion and high S/N Ratio qualities, not to mention the built-in VCO feature which
eliminates the need for an external crystal oscillator are just some of the features of PT2390. Pin assign-
ments and application circuit are optimized for easy PCB Layout and low cost effectiveness.
FEATURES
• CMOS Technology
• Least External Component
• 5V Power Supply
• 2 Microphone Amplifier and KARAOKE Automatic Vocal Changer
• Built-in 44K RAM
• Built-in VCO, eliminating the need for a crystal oscillator
• Low Total Harmonic Distortion : Microphone Pre-Amplifier <0.09% (typ.)
: Echo Processor < 0.5% (typ.)
• High S/N Ratio : Microphone Pre-Amplifier > 85 (no - weighting)
: Echo Processor > 80 dB (no - weighting)
• Available in 28-pin, DIP or SO Package
APPLICATIONS
• DVD, VCD
• KARAOKE
• VCR
• Mini Compo
• Other Audio Equipments
Ref. No. 2390 v1.1
1
Written July 1999
1 page  
Princeton Technology Corp.
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Echo IC with Built-in Microphone Amplifier & Output Mixer PT2390
APPLICATION CIRCUIT
Note: * = You can adjust the 5K Variable Resistor value in order to change the Oscillator Frequency. The
Oscillator waveform can be measured from Pin No.12. It must be kept in mind that the probe’s
capacitor can cause erroneous oscillator waveform measurement.
Ref. No. 2390 v1.1
8
Written July 1999
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PT2390.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PT2390 | Echo IC with Built-in Microphone Amplifier & Output Mixer | Princeton Technology Corp |
| PT2390-S | Echo IC with Built-in Microphone Amplifier & Output Mixer | Princeton Technology Corp |
| PT2395 | Enhanced Digital Echo IC | Princeton Technology Corp |
| PT2396 | Digital Echo/Surround Processor IC | Princeton Technology Corp |
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