TDA1596 Просмотр технического описания (PDF) - Philips Electronics
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TDA1596 Datasheet PDF : 20 Pages
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Philips Semiconductors
IF amplifier/demodulator for
FM radio receivers
Product specification
TDA1596
GENERAL DESCRIPTION
The TDA1596 provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and
car FM radio receivers and is suitable for both mono and stereo reception. It may also be applied to common front-ends,
stereo decoders and AM receiver circuits.
Features
• Simulates behaviour of a ratio detector (internal field strength and detuning-dependent voltage for dynamic AF signal
muting)
• Mono/stereo blend and field strength indication control voltage
• Three-state mode switch for FM, mute-on / FM, mute-off / FM-off
• Internal compensation of AF signal total harmonic distortion (THD)
• Two open collector stop pulse outputs for microcomputer tuning control (can be one stop pulse output by
wired-ANDing)
• Internal reference voltage source
• Built-in hum and ripple rejection circuits
QUICK REFERENCE DATA
PARAMETER
Supply voltage (pin 1)
Supply current (pin 1)
AF output voltage
(RMS value)
Signal-to-noise ratio
Total harmonic distortion
Operating ambient
temperature range
CONDITIONS
VP = 8.5 V;
I2 = I7 = 0 mA
V18(rms) = 10 mV
V18(rms) = 10 mV;
fm = 400 Hz;
∆f = 75 kHz
V18(rms) = 10 mV;
fm = 1 kHz; I7 = 0 mA;
∆f = 75 kHz; FM mute on;
without de-emphasis;
without detuning
SYMBOL
VP
IP
V4(rms)
S/N
THD
Tamb
MIN.
7.5
−
180
−
−
−40
TYP.
8.5
MAX.
12.0
UNIT
V
20
26
mA
200
220
mV
82
−
dB
0.1
0.3
%
−
+ 85
°C
SEE ALSO DATA SHEET FOR TDA1596T
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 06.
April 1991
2
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