Texas Instruments MC-780PIx - Manual (Page 25)

External Sync With No Interlace
3-3 Using the External SYNC Mode
3.2 External Sync With No Interlace
On the rear panel, set switch 5 of mode switch SW3 to OFF.
3.2.1 External Sync Signal Input Conditions
- HD signals: 15.734 kHz
±
1% (63.5
µ
s
±
1%)
- VD signals: 244 ~ 1021 H, (see Notes 1, and 2)
- Phase
Figure 3–2. External Sync With No Interlace
HD
VD
6 H
2 4 4 ~ 1 0 2 1 H
Notes: 1) The sync becomes internal sync if the VD does not come above 1022H.
2) VD does not receive 0~243H