Pin Details of IC TBA120U

Pin Details of IC TBA120U

Substitute : A223D ,SN76622 ,U223

Functions :

1.Sound IF Amplifier.
2.FM Detector.
3.A.F.Ampliefier

Pin

No.

Function
Voltage
1.
ground( -Ve supply voltage )
0
2.
Sound IF input (5.5 MHz)
1.9
3.
Audio voltage input
2.9
4.
Volume Feedback
4.8
5.
volume control (Electronic attenuator)
3.8
6.
Not connected
NC
7.
FM Detector
3.3
8.
Audio output
4
9.
FM Detector
3.3
10.
Not connected
NC
11.
Positive (+ Ve supply voltage)
11
12.
Fixed AF Output
5
13.
Sound I.F. Feedback
1.9
14.
Sound I.F. Input(5.5 Mhz.)
1.9


 
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