VHF - FM stereo tuner 60-108 MHz on the TDA7021T chip. Scheme, description

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VHF - FM stereo tuner 60-108 MHz on the TDA7021T chip. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / radio reception

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Technical specifications

Fwork................60-108 MHz	Fout.................40-16000 Hz
Sensitivity........4 µV	Uout................500 mV
Up............7 - 15 V	Icont.......less than 25 mV

Schematic diagram

(click to enlarge)

L1 - 8 turns, L2 - 13 turns of wire with a diameter of 0,55 mm, winding without a frame, on a mandrel with a diameter of 3 mm. L1 determines the received range, L2 the input circuit, the trimmer - the capture of the stereo signal.

Layout of elements

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Publication: cxem.net

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