TBA229-5 Siemens, TBA229-5 Datasheet - Page 5

• Manufacturer Part Number: TBA229-5
• Description: Dual Sound FM IF Amplifier
• Manufacturer: Siemens

Pin Functions
Pin No.
1, 2
3
4
5
6
7, 8
9
10
11
12
13
14
15
16
Semiconductor Group
Function
Demodulator tank circuit connection IF 1
(high impedance input – slope of S-curve can be determined by external resistor
between pins 1 and 2)
GND
AF output IF 1 (emitter follower)
AF output IF 2 (emitter follower)
Supply voltage
Demodulator tank circuit connection IF 2
(high impedance input – slope of S-curve can be determined by external resistor
between pins 1 and 2)
Operating point feedback of limiter amplifier and low end IF 2
(RF decoupling of IF amplifiers with appropriate capacitors is required!
Operating point feedback of limiter amplifier IF 2
(RF decoupling of IF amplifiers with appropriate capacitors is required!)
IF 2 input
(input of limiter amplifier IF 2; internal resistor between pins 9 and 11 is typ. 800 )
GND
Internal reference voltage (typ. 6 V)
IF 1 input
(input of limiter amplifier IF 2; internal resistor between pins 14 and 15 is
typ. 800 )
Operating feedback of limiter amplifier IF 1
(RF decoupling of IF amplifiers with appropriate capacitors is required!)
Operating point feedback of limiter amplifier and low end IF 1
(RF decoupling of IF amplifiers with appropriate capacitors is required!)
5
TBA 229-5