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Philips Semiconductors
FM/IF amplifier/demodulator circuit
FEATURES
Fully balanced 4-stage limiting IF amplifier
Symmetrical quadrature demodulator
Field strength indication output for 1 mA ammeter
Detune detector for side response and noise attenuation
Detune voltage output
Internal muting circuit
0 and 180 AF output signals
Reference voltage output
Electronic smoothing of the supply voltage.
QUICK REFERENCE DATA
SYMBOL
V
supply voltage (pin 1)
P
I
supply current
P
V
input sensitivity (RMS value)
iIF(rms)
V
AF output voltage (RMS value)
oAF(rms)
THD
total harmonic distortion with double
resonant circuits
S/N
signal-to-noise ratio
AM suppression
AM
RR
ripple rejection
I
maximum indicator output current
15
T
operating ambient temperature
amb
ORDERING INFORMATION
TYPE
NUMBER
NAME
TDA1576T
SO20
1998 Nov 18
PARAMETER
plastic small outline package; 20 leads; body width 7.5 mm
GENERAL DESCRIPTION
The TDA1576T is a monolithic integrated FM/IF amplifier
circuit for use in mono and stereo FM-receivers of car
radios or home sets.
CONDITIONS
3 dB before limiting 14
S/N = 26 dB
S/N = 46 dB
V
> 1 mV
i
f = 100 Hz
PACKAGE
DESCRIPTION
2
Product specification
TDA1576T
MIN.
TYP.
MAX.
7.5
8.5
15
10
16
23
22
35
10
55
60
67
75
0.02
72
50
43
48
2
30
+80
UNIT
V
mA
V
V
V
mV
%
dB
dB
dB
mA
C
VERSION
SOT163-1
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