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
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 µV2.2 V
R8(int) Internal resistance 12 25 50 k
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V6
V6T
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V6
20 V20
log
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