Optical receiver circuit diagram

Published:2011/7/2 21:18:00 Author:leo | Keyword: Optical receiver circuit diagram, LA7224 | From:SeekIC

The picture shows a optical receiver circuit. In this circuit, LA7224 is a kind of front amplifier which is used to receive signals. Peak value keeping circuit, integral circuit and so on can form the integrated circuit of the same chip. The syntony circuit formed by L and G2 are used to get carrier and the carrier comes through the amplitude-limited circuit to keep the peak value (C3), by which the S/N of this circuit is improved. C4 is integral circuit and capacitor recommended is 0.0047μF. When the output voltage of the pin 1 of LA7224 is 0.3 V, VT1 is stopped and output voltage is U which is a high value.



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