View tda7010t datasheet:

INTEGRATED CIRCUITS DATA SHEET TDA7010T FM radio circuit September 1983 Product specification File under Integrated Circuits, IC01 Philips Semiconductors Product specification FM radio circuit TDA7010T GENERAL DESCRIPTION The TDA7010T is a monolithic integrated circuit for mono FM portable radios, where a minimum on peripheral components is important (small dimensions and low costs). The IC has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC filters. The only function which needs alignment is the resonant circuit for the oscillator, thus selecting the reception frequency. Spurious reception is avoided by means of a mute circuit, which also eliminates too noisy input signals. Special precautions ar