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Fabricante

PT2390

Echo IC with Built-in Microphone Amplifier & Output Mixer

Princeton Technology 

Written July 1999

9

Ref. No. 2390 v1.1

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.

1. IN_R must be connected to Human Vocal Input.

2. IN_L must be connected to KARAOKE Music

Guidelines in using this Application Circuit:

AUTO-VOCAL CHANGER APPLICATION CIRCUIT

Echo IC with Built-in Microphone Amplifier & Output Mixer PT2390

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Fax: 886-2-29174598

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

Princeton Technology Corp.

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