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TDA1072AT डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - AM receiver circuit - NXP

भाग संख्या TDA1072AT
समारोह AM receiver circuit
मैन्युफैक्चरर्स NXP 
लोगो NXP लोगो 
पूर्व दर्शन
1 Page
		
<?=TDA1072AT?> डेटा पत्रक पीडीएफ

TDA1072AT pdf
Philips Semiconductors
AM receiver circuit
Product specification
TDA1072AT
GENERAL DESCRIPTION
The TDA 1072AT 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 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.
If required, band switching diodes can easily be applied. Selectivity is obtained using a block filter before the IF amplifier.
Features
Inputs protected against damage by static discharge
Gain-controlled RF stage
Double balanced mixer
Separately buffered, voltage-controlled and temperature-compensated oscillator, designed for simple coils
Gain-controlled IF stage with wide AGC range
Full-wave, balanced envelope detector
Internal generation of AGC voltage with possibility of second-order filtering
Buffered field strength indicator driver with short-circuit protection
AF preamplifier with possibilities for simple AF filtering
Electronic standby switch.
QUICK REFERENCE DATA
PARAMETER
Supply voltage range
Supply current range
RF input voltage for
S+N/N = 6 dB at m = 30%
RF input voltage for 3%
total harmonic distortion
(THD) at m = 80%
AF output voltage with
VI = 2 mV; fI = 1 MHz;
m = 30% and fm = 400 Hz
AGC range: change of VI
for 1 dB change of VO(AF)
Field strength indicator
voltage at VI = 500 mV;
RL(9) = 2.7 k
CONDITIONS
SYMBOL
VP
IP
MIN.
7.5
15
TYP.
MAX.
10
26
UNIT
V
mA
VI 1.5 − µV
VI 500 mV
VO(AF) 310 mV
86 dB
VIND
2.8 V
PACKAGE OUTLINE
16-lead mini-pack; plastic (SO16; SOT109A); SOT109-1; 1996 August 13.
March 1989
2

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