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TBA229-5
Dual Sound FM IF Amplifier
SIEMENS
Dual Sound FM IF Amplifier
Features
0 High AM suppression over a very wide
input voltage range
0 High sensitivity
0 Very high symmetry
TBA 229-5
Bipolar IC
P-DlP-16
The component contains two separate limiter amplifiers with FM demodulators and separate
AF outputs.
Type Ordering Code Package
TBA 229-5 Q67000-A5133 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 AM min.
Semiconductor Group
SIEMENS; TBA229-5
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit
min. max.
Supply voltage Vs 0 16 V
Reference current [REF 0 2 mA
IF input voltage VI IF rms 0 600 mV
DC voltages V9,1o,11 0 VREF V
V14,15,16 0 VREF V
DC currents 11, 2,4, 5, 7, s 0 2 mA
Junction temperature T] 150 (
Storage temperature range Tstg - 40 125 (
Thermal resistance (system-air) RthSA 80 KNV
Operating Range
Supply voltage Vs 10.5 15.75 V
Ambient temperature TA 0 70 (
Frequency f 0.1 12 MHz
Semiconductor Group 2
