TDA1576

INTEGRATED CIRCUITS DATA SHEET TDA1576 FM/IF amplifier/demodulator circuit Product specification Supersedes data of March 1985 File under Integrated Circuits, IC01 1998 Nov 18 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit FEATURES Symmetrical limiting IF amplifier Symmetrical quadrature demodulator Internal muting circuit Symmetrical AFC output Field strength indication output Detune detector Reference voltage output Electronic smoothing of the supply voltage Standby on/off switching circuit. QUICK REFERENCE DATA fo = 10.7 MHz; ∆f = ±22.5 kHz; fm = 400 Hz; QL = 20; 50 µs de-emphasis. SYMBOL VP IP ViIF(rms) PARAMETER supply voltage (pin 1) supply current input sensitivity (RMS value) VP = 8.5 V VP = 15 V S+N ------------- = 26 dB N S+N ------------- = 46 dB N VoAF(rms) THD AF output voltage (RMS value) total harmonic distortion single tuned circuit two tuned circuits S+N ------------N signal plus noise-to-noise ratio ViIF > 1 mV (RMS); VP = 8.5 V ViIF > 1 mV (RMS); VP = 15 V αAM ∆fi ∆Vi IL Tamb AM suppression AFC offset drift field strength indication permissible indicator load current operating ambient temperature − − − − − − − − −30 0.1 0.02 76 80 50 ±3 90 − − − − − − − ±6 − 2 VP = 8.5 V VP = 15 V CONDITIONS − − − − − − MIN. 7.5 − 16 18 22 8 35 67 135 TYP. − − − − − − − GENERAL DESCRIPTION TDA1576 The TDA1576 is a monolithic integrated FM/IF amplifier circuit for use in mono and stereo FM-receivers of car radios or home...