Product Summary

The TDA1072AT is an integrated AM receiver circuit. It performs the active and part of the filtering functions of an AM radio receiver. It is intended for use in mains-fed home receivers and car radios. The TDA1072AT can be used for oscillator frequencies up to 50 MHz and can handle RF signals up to 500 mV. RF radiation and sensitivity to interference are minimized by an almost symmetrical design. The voltage-controlled oscillator provides signals with extremely low distortion and high spectral purity over the whole frequency range even when tuning with variable capacitance diodes.

Parametrics

TDA1072AT absolute maximum ratings: (1)Supply voltage V13: 12 V; (2)Input voltage pins 14-15 V14-15: 10 V; pins 14-16 V14-16: VP V; pins 15-16 V15-16: VP V; pins 14-16 V14-16: -0.6 V; pins 15-16 V15-16: -0.6 V; (3)Input current(pins 14 and 15) I14-15: 200 mA; (4)Total power dissipation Ptot: 300 mW; (5)Operating ambient temperature range Tamb: -40 to + 80 ℃; (6)Storage temperature range Tstg: -55 to + 150 ℃; (7)Junction temperature Tj: + 125 ℃.

Features

TDA1072AT features: (1)Inputs protected against damage by static discharge; (2)Gain-controlled RF stage; (3)Double balanced mixer; (4)Separately buffered, voltage-controlled and temperature- compensated oscillator, designed for simple coils; (5)Gain-controlled IF stage with wide AGC range; (6)Full-wave, balanced envelope detector; (7)Internal generation of AGC voltage with possibility of second-order filtering; (8)Buffered field strength indicator driver with short-circuit protection; (9)AF preamplifier with possibilities for simple AF filtering; (10)Electronic standby switch.

Diagrams

TDA1072AT block diagram

Image Part No Mfg Description Data Sheet Download Pricing
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TDA1072AT
TDA1072AT

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