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TDA7021T - FM radio circuit

General Description

The TDA7021T integrated radio receiver circuit is for portable radios, stereo as well as mono, where a minimum of periphery is important in terms of small dimensions and low cost.

It is fully compatible for applications using the low-voltage micro tuning system (MTS).

Key Features

  • RF input stage.
  • Mixer.
  • Local oscillator.
  • IF amplifier/limiter.
  • Frequency detector.
  • Mute circuit.
  • MTS compatible QUICK.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET TDA7021T FM radio circuit for MTS Product speciļ¬cation File under Integrated Circuits, IC01 May 1992 Philips Semiconductors Product speciļ¬cation FM radio circuit for MTS GENERAL DESCRIPTION TDA7021T The TDA7021T integrated radio receiver circuit is for portable radios, stereo as well as mono, where a minimum of periphery is important in terms of small dimensions and low cost. It is fully compatible for applications using the low-voltage micro tuning system (MTS). The IC has a frequency locked loop (FLL) system with an intermediate frequency of 76 kHz. The selectivity is obtained by active RC filters. The only function to be tuned is the resonant frequency of the oscillator.