The application circuit of TDA7088 FM integrated circuit


Posted on Feb 7, 2014    8763

This is the automatically search schematic diagram of FM radio. Its core component is a TDA7088 integrated circuit which includes FM radio receiver, antenna, oscillator, mixer, AFC ( frequency automatic control) circuit, intermediate frequency amplifier ( IF frequency is 70kHz), IF limiter, IF filter, frequency discriminator, low frequency squ


The application circuit of TDA7088 FM integrated circuit
Click here to download the full size of the above Circuit.

elch circuit and audio output; it also specifically sets search tuning circuit, signal detection circuit and frequency locked loop. It can use a varactor diode to replace the variable capacitor is, which is a special kind of diodes. The PN junction capacitance is changed with the bias voltage ( reverse voltage) on PN junction.




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