External Sync With Interlace

3.1 External Sync With Interlace

On the rear panel, set switch 5 of mode switch SW3 to ON.

3.1.1External Sync Signal Input Conditions

-HD signals: 15.734 kHz ± 1% (63.5 μs ± 1%)

-VD signals: 262.5 H

-Phase

In Figure 3±1, when the last VD transition is between 47.42 μs ahead and 16.13 μs behind relative to the last HD transition, it becomes the ODD field.

When the last VD transition is between 16.13 μs ahead and 47.42 μs behind relative to a 1/2 H point from the last HD transition, it becomes the EVEN field.

Figure 3±1. External Sync Timing

1 H

1/2 H

HD

VD odd field

VD even field

3-2

Using the External SYNC Mode

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Texas Instruments MC-780PIx manual External Sync With Interlace, External Sync Signal Input Conditions