EL1881C Elantec, EL1881C Datasheet - Page 7

• Manufacturer Part Number: EL1881C
• Description: Sync Separator/ Low Power
• Manufacturer: Elantec

EL1881C
Sync Separator, Low Power
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).
* Signal 1a drawing reproduced with permission from EIA.
Figure 1. Standard (NTSC Input) Timing
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