Pin Details of IC TDA 2577A

Pin Details of IC TDA 2577A
Functions :

1. Horizontal sync separator
2. Noise Invertor
3. Horisontal oscillator & drive
4. Horisontal phase Detector
5. Vertical oscillator
6. Sand-Castle Pulse Generator
7. Vertical Sync Separator & Vertical Driver
8. Vertical blangking generator

Pin No.	Function	Voltage
1.	Vertical output (50 Hz.)	3.4
2.	Vertical feedback (output to input)	3.5
3.	Vertical frequency adjust (50 Hz.)(V-Hold)	5.6
4.	Vertical sync separator (50 Hz.)	2.4
5.	Video input to sync separator	3
6.	Horizontal sync separator (15625 Hz.)	6.6
7.	Horizontal sync separator (15625 Hz.)	5.8
8.	Phase detector1 output	3
9.	Ground (-Ve supply voltage)	0
10.	Positive (+ Ve supply voltage )	12
11.	Horizontal frequency out (15625 Hz.)	3.2
12.	Horizontal flyback pulse input (15625 Hz.)	0.4
13.	Video transmitter identification / VCR switch	11
14.	Phase detector 2 output	3.7
15.	Horizontal oscillator frequency (15625 Hz.) adjustment (H-Hold)	4.4
16.	Horizontal oscillator start supply circuit	9
17.	Sand - castle pulse output	1.4
18.	Coincidence detector	0.6