The internal circuit of TDA7000 and its basic receiving circuit

Relevant key device information applied in this article: TDA7000 TDA7010 TDA7021 The TDA7000 series of integrated circuits includes three varieties: TDA7000, TDA7010, and TDA7021. It is a single-chip FM receiving integrated circuit launched by Philips. This circuit has high integration and low operating voltage. It is widely used because it does not require double-connected variable capacitors and external intermediate frequency transformers.