INTEGRATED CIRCUITS DATA SHEET TDA1597 IF amplifier/demodulator for FM radio receivers Product specification Supersedes data of May 1994 File under Integrated Circuits, IC01 1997 Feb 27 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers FEATURES • Balanced limiting amplifier • Balanced coincidence demodulator • Two open-collector stop pulse outputs for microcomputer tuning control • Simulated behaviour of ratio detector (internal field strength and detuning dependent voltage for dynamic AF signal muting) • Mono/stereo blend field strength indication control voltage • AFC output • 3-state mode switch for FM-MUTE-ON, FM-MUTE-OFF and FM-OFF • Internal...

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