NJM2035 circuit encoder stereo multiplexer FM transmitter. Encoder stereo Multiplexer for stereo FM transmitters with ic NJM2035.
That codifier stereo is for who wants a system of transmission of audio stereo of high quality (hi fi). That integrated circuit produces an excellent and clear audio and a separation of excellent channel comparable with other much more expensive systems. The heart of the circuit is the IC NJM2035 of the NJR corporation and I say that the lung of the circuit of the encoder stereo it is the crystal of quartz of 38KHz. You don’t need to like this to gauge or to do any adjustment.
Description of the circuit of the encoder stereo
The circuit consists of three blocks: Pre emphasis, digital encoder and mixing apprenticeship.
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The second block is inside NJM2035, it is a digital codifier
The third block is the mixer, and it consists of the capacitors of 33µF and 100nF and the resistors of 82k and 10k. The objective of that circuit is to multiplexer the sub-carrier and the pilot sign. The sign MPX comes out for CI NJM2035 pin 9. The pilot sign comes out for the pin 8 in the frequency of 19 KHz.
Diagram in blocks intern of the integrated NJM2035
Suggestion of the circuit of the multiplexor’s for transmitter stereo
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