EL1881 データシートの表示（PDF） - Intersil

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EL1881

Sync Separator, Low Power

Intersil 

Timing Diagrams

EL1881C

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

7

FN7018.1

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