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TDA1072A

NXP
Part Number TDA1072A
Manufacturer NXP
Description AM receiver circuit
Published Apr 23, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA1072A AM receiver circuit Product specification File under Integrated Circuits, IC01 ...
Datasheet PDF File TDA1072A PDF File

TDA1072A
TDA1072A

Overview
INTEGRATED CIRCUITS DATA SHEET TDA1072A AM receiver circuit Product specification File under Integrated Circuits, IC01 May 1984 Philips Semiconductors Product specification AM receiver circuit GENERAL DESCRIPTION TDA1072A The TDA1072A integrated AM receiver circuit 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 circuit can be used for oscillator frequencies up to 50 MHz and can handle r.
f.
signals up to 500 mV.
R.
F.
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.
If required, band switching diodes can easily be applied.
Selectivity is obtained using a block filter before the i.
f.
amplifier.
Features • Inputs protected against damage by static discharge • Gain-controlled r.
f.
stage • Double balanced mixer • Separately buffered, voltage-controlled and temperature-compensated oscillator, designed for simple coils • Gain-controlled i.
f.
stage with wide a.
g.
c.
range • Full-wave, balanced envelope detector • Internal generation of a.
g.
c.
voltage with possibility of second-order filtering • Buffered field strength indicator driver with short-circuit protection • A.
F.
preamplifier with possibilities for simple a.
f.
filtering • Electronic standby switch.
QUICK REFERENCE DATA Supply voltage range Supply current range R.
F.
input voltage for S + N/N = 6 dB at m = 30% R.
F.
input voltage for 3% total harmonic distortion (THD) at m = 80% A.
F.
output voltage with Vi = 2 mV; fi = 1 MHz; m = 30% and fm = 400 Hz A.
G.
C.
range: change of Vi for 1 dB change of Vo(af) Field strength indicator voltage at Vi = 500 mV; RL(9) = 2,7 kΩ PACKAGE OUTLINE 16-lead DIL; plastic (SOT38); SOT38-1; 1996 August 09.
VIND typ.
2,8 V Vo(af) typ.
typ.
310 mV 86 dB Vi typ.
50...


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