EL4581C Elantec Semiconductor, Inc. (acquired by Intersil), EL4581C Datasheet - Page 5
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EL4581C
Manufacturer Part Number
EL4581C
Description
Video SYNC Separator
Manufacturer
Elantec Semiconductor, Inc. (acquired by Intersil)
Datasheet
1.EL4581C.pdf
(12 pages)
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Timing Diagrams
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)
Sync Separator 50% Slice S-H Filter
Figure 1
5
EL4581C
4581 – 3