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...

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