Showing posts with label FM Stereo Encoder. Show all posts
Showing posts with label FM Stereo Encoder. Show all posts

Saturday, August 6, 2011

FM Stereo Encoder With RC4200 Multiplexer IC

This circuit is stereo encoder for stereo modulation fm broadcast. The Basic component for stereo multiplexing is a single RC4200 IC. The textbook way of processing and encoding a stereo signal for FM transmission goes like this:1) Take both channels and low-pass-filter them at 15kHz, with steep rolloff;2) Apply pre-emphasis. Depending on...
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Saturday, July 9, 2011

FM Stereo Encoder NJM2035

This stereo encoder is the perfect solution for those looking for a high quality stereo sound transmission at a low cost. This stereo encoder produces an excellent crystal clear stereo sound and very good channel separation that can match with many more expensive stereo encoders that are available on the market. It is all possible thanks...
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FM Stereo Encoder BA1404

This FM stereo encoder uses IC BA1404 for transmiting on FM band broadcast. Sub carrier frequency generated from 38 KHz Crystal. FM Power output is around 250mW. For input preamplifier used a couple of IC 741. You need a fm amplifier for boosting rf signal.Stereo Encoder Schematic circuitBA1404 datasheetAnother Stereo Encoder CircuitYou may...
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Thursday, July 7, 2011

FM Stereo Encoder

This Stereo encoder circuit built with MC1496. It produces a very clean signal with good separation (it performed as well as any other encoder, which included some expensive professional ones) and has been used on many professional commercial radio stations. There's no input filtering on it so it has to be proceeded by a 15 kHz low-pass...
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Wednesday, June 22, 2011

FM Stereo Encoder for Beginner

This circuit is a simple fm stereo encoder. A method commonly used in (double side-band suppressed carrier) DSB-SC modulation to provide synchronisation between modulator and demodulator is to transmit a sinusoidal tone (pilot tone) whose frequency and phase are related to the carrier frequency. This tone is positioned at 19 kHz, outside...
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Wednesday, May 4, 2011

Stereo Encoder Digital Multiplexing Overview

The diagram below shows an examples of the theoritical display that one could see on spectrum analyzer connected to output of a stereo encoder. The L+R section is simply the mono signal generated from the stereo input after filtering with a 15 KHz low pass filter. The 19 KHz pilot must be generated by encoder. The L-R (difference) signal...
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Sunday, March 6, 2011

CD4066 FM Stereo Encoder

Circuit schematics IC1-4069 in the Y1, Y2 formation of a 76 KHZ frequency of the oscillator, the Y3-Y6 isolation plastic, into IC2 dual JK flip-flop CD4027 composed of two components- frequency circuit, a symmetrical + / 38KHZ-19 KHZ and the square wave, + / -38 KHZ IC3 the square used to control analog switches CD4066, a stereo audio input...
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Saturday, March 5, 2011

FM Stereo Encoder CD4066

Circuit schematics IC1-4069 in the Y1, Y2 formation of a 76 KHZ frequency of the oscillator, the Y3-Y6 isolation plastic, into IC2 dual JK flip-flop CD4027 composed of two components- frequency circuit, a symmetrical + / 38KHZ-19 KHZ and the square wave, + / -38 KHZ IC3 the square used to control analog switches CD4066, a stereo audio input...
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