ITT - Index of

TBA120S
INTEGRATED FM/IF
AMPLIFIER AND DEMODULATOR
Volume control range
DC level of output signal
at Vin = 0
AM rejection ratio
for .Min = ± 50 kHz, Vin = 500 /-tV,
fAF = 1 kHz, m = 30 %
Resistance of potentiometer
for -1 dB output voltage decrease
Voltage at pin 5
for -1 dB output voltage decrease
Resistance of potentiometer
for -70 dB output voltage decrease
Voltage at pin 5
for -70 dB output voltage decrease
VB (P = 5 kQ)
Va (P = 0)
70 dB
VB= 7.3 V
a' 55 (> 45) dB
P 3.7 « 4.7) kQ
Vs 2.4 « 2.6) V
P 1.4 (> 1) kQ
Vs 1.3 V
Characteristics of Integrated Components
at pins 4, 3, and 12
Operating voltage of Z-diode VZ/2 12 V
at 1Z12 = 5 mA (11.2 ... 13.2)
Dynamic differential resistance rz; 30 Q
Collector emitter breakdown voltage V31l10 > 13 V
at 13 = 500 flA
DC current gain hFE >30
at 13 = 1 mA
Thermal resistance RthA < 120 °C/W
die to ambient air
The integrated circuit TBA 120 S is delivered in 4 groups. Depending on
the group a decrease of 30 dB requires a resistor from pin 5 to ground
as indicated in the table below. The No. of the group is printed on the IC.
Group I II
I "I I IV I V
p I 1.9 ... 2.2 I 2.1 ... 2.5 I 2.4 ... 2.9 I 2.8 ... 3.3
8-32