Pin Details of IC TDA2578

Pin Details of IC TDA2578

Functions :

  1. Sync separator
  2. AFC
  3. Horizontal oscillator
  4. Vertical oscillator
  5. Horizontal driver
  6. Vertical driver
  7. Phase detector
  8. Vertical blangking generator

Pin

No.

Functions
Voltage
1.
Vertical driver output(50Hz.)
5.5
2.
Vertical feedback to vertical comparator
4.4
3.
Vertical oscillator frequency(50Hz.)control (V-Hold)
5.4
4.
Vertical sync separator (50Hz.)
5.3
5.
Composite video signal input to sync separator
3
6.
7.9
7.
Horizontal oscillator (15625Hz.)
6.4
8.
Horizontal oscillator (15625Hz.)phase control phase detector
3
9.
Ground (-Ve supply voltage)
0
10.
Positive (+ Ve supply voltage)
12.4
11.
Horizontal frequency output (15625Hz.)
3.8
12.
Flyback (blanking) input pulse ( 15625Hz.)
0.4
13.
Video tranmitter identification output
6.8
14.
2.6
15.
Horizontal oscillator frequency control ( 15625Hz. )H-hold
4.4
16.
Positive stabilized supply to start circuit
9
17.
Sand castle pulse output
1.4
18.
Coincidance detector (phase detector)
0.6



 
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