Tda7000 Ic. Selectivity is obtained by active rc filters. External to the ic are only one tunable lc circuit for the local oscillator a few inexpensive ceramic plate capacitors and one resistor.
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The ic has an fll frequency locked loop system with an intermediate frequency of 70 khz. Selectivity is obtained by active rc filters. Complete schematic fm radio receiver using the tda7000 ic can be seen in the following figure.
This ic was first presented in the 1980s and increased its fame in the electronics world and it is still well known following 31 years.
The new circuit is the tda7000 which integrates a mono fm radioall the way from the aerial input to the audio output. The ic has an fll frequency locked loop system with an intermediate frequency of 70 khz. Philips alldatasheet datasheet datasheet search site for electronic components and. The intermediate frequency selectivity is achieved by active rc filters.
