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TEA5570 - AM/FM radio RF/IF

General Description

The TEA5570 is a monolithic integrated radio circuit for use in portable receivers and clock radios.

The IC is also applicable to mains-fed AM and AM/FM receivers and car radio-receivers.

Key Features

  • Simple d. c. switching for AM to FM by only one d. c. contact to ground (no switch contacts in the i. f. channel, a. f. or level detector outputs).
  • AM and FM gain control.
  • Low current consumption (Itot = 6 mA).
  • Low voltage operation (VP = 2,7 to 9 V).
  • Ability to handle large AM signals; good i. f. suppression.
  • Applicable for inductive, capacitive and diode tuning.
  • Double smoothing of a. g. c. line.
  • Short-wave range up to 30 MHz.

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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 TEA5570 RF/IF circuit for AM/FM radio Product specification File under Integrated Circuits, IC01 September 1987 Philips Semiconductors Product specification RF/IF circuit for AM/FM radio GENERAL DESCRIPTION TEA5570 The TEA5570 is a monolithic integrated radio circuit for use in portable receivers and clock radios. The IC is also applicable to mains-fed AM and AM/FM receivers and car radio-receivers. Apart from the AM/FM switch function the IC incorporates for AM a double balanced mixer, 'one-pin' oscillator, i.f. amplifier with a.g.c. and detector, and a level detector for tuning indication. The FM circuitry comprises i.f. stages with a symmetrical limiter for a ratio detector.