EL4511 데이터 시트보기 (PDF) - Intersil

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EL4511

Super Sync Separator

Intersil 

EL4511

COMPOSITE VIDEO INPUT, BEGINNING OF FIELD ONE

START OF FIELD ONE

622 623 624 625 1

2

3

4

5

6

7

SYNCOUT OUTPUT

VOUT OUTPUT

TVS

ODD/EVEN OUTPUT

23

24

BACKPORCH OUTPUT

HOUT OUTPUT

V BLANK OUTPUT

Notes:

b. The composite sync output reproduces all the video input sync pulses, with a propagation delay.

c. Vertical sync leading edge is coincident with the first vertical serration pulse leading edge, with a propagation delay.

d. Odd-even output is low for even field, and high for odd field.

e. Back porch goes low for a fixed pulse width on the trailing edge of video input sync pulses. Note that for serration pulses

during vertical, the back porch starts on the rising edge of the serration pulse (with propagation delay).

FIGURE 5. EXAMPLE OF VERTICAL INTERVAL (625)

7

FN7009.7

July 21, 2005

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