April 1991 8
Philips Semiconductors Product specification
IF amplifier/demodulator for FM radio
receivers TDA1596T
Attack and decay (pin 16)
Pin 13 connected to ground *
+I16 charge current −8−µA
−I
16 discharge current −120 −µA
Pin 13 connected to Vref
+I16 charge current −100 −µA
−I
16 discharge current −120 −µA
Level detector
Dependence of output voltage on temperature −3.3 −mV/VK
R6Output impedance −−500 Ω
Dependence of output voltage (pin 6) on input voltage
(pin 20) (Fig.7):
V6V20(rms) ≤ 5 µV; I2= I7= 0 mA 0.1 0.7 1.3 V
V6V20(rms) = 1 mV; I2= I7= 0 mA 3.0 3.6 4.2 V
Slope of output voltage (pin 6) for input voltage range
V20(rms) ≥50 µV to V20(rms) ≤50 mV 1.4 1.7 2.0 V/20 dB
Dependence of output voltage (pin 6) on detuning
(Fig.8) at input voltage V20(rms) = 10 mV:
∆V6detuning = ≤ ±45 kHz −−0.2 V
±∆f detuning for V6= 1.8 V 90 −160 kHz
V6detuning = ±200 kHz 0.5 0.7 0.9 V
|∆V6/∆f| Slope of output voltage with detuning = 125 ±20 kHz
at V20(rms) = 10 mV −35 −mV/kHz
Level shift control (pin 2) (Fig.9)
±∆V6adjustment range 1.6 2.0 −V
−(∆V6/∆V2) adjustment gain −1.7 −V
V6output voltage at V2= V5; V20(rms) ≤ 5 µV−−0.3 V
Low-pass filter at pin 8
Output voltage at I7= 0 mA;
V8V20(rms) ≤ 5 µV−2.2 −V
R8(int) Internal resistance 12 25 50 kΩ
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V6
∆
V6T∆
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V6
∆
20 V20
log∆
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