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The component contains two separate ..
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TBA229-2
Dual Sound FM IF Amplifier
SIEMENS
Dual Sound FM IF Amplifier
TBA 229-2
Bipolar IC
The component contains two separate limiter amplifiers with FM demodulators and
separate AF outputs.
Features
o High AM suppression over a very wide
input voltage range
0 High sensitivity
0 Very high symmetry
Ordering Code
Package
TBA 229-2
Q67000-A8037
P-DIP-16
Circuit Description
The component contains two separate FM sound IF sections for television stereo
applications or for multistandard receivers, Each FM section consists of an eight-stage
symmetrical limiter amplifier followed by a coincidence demodulator and an AF pre-
amplifier with a Iow-ohmic output. The component features considerably improved AM
suppression characteristics with small input signals, as well as a very low frequency
deviation between THD min and AMmin.
377 01.90
TBA 229-2
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit
min. max.
Supply voltage Vs 0 16 V
Reference current Ins: O 2 mA
IF input voltage VI F rms 0 600 mV
DC voltages Vs, 10,11 0 V REF V
V14,15,15 0 VREF V
DC currents I1, 2,4,5, 7,8 0 2 mA
Junction temperature Ti 150 o C
Storage temperature range Tstg - 40 125 . C
Thermal resistance (system-air) thSA 80 W
Operating Range
Supply voltage Vs 10.5 15.75 V
Ambient temperature TA 0 70 . C
Fequency f I 0.1 12 MHz
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