Specifications for RGB Sync Inputs

Version 2.1 December 21, 1995

I. SYNC INPUTS

There are three Sync signal inputs for use with RGB sources:

1.SYNC-ON-GREEN (SOG) - - this is through the Green video input BNC jack, terminated 75 ohms.

2.HORIZONTAL/COMPOSITE (H / Comp) - - through a BNC jack on the 9-1515 Combo module, software switchable termination 2K/75 ohms.

3.VERTICAL (V) - - through a BNC jack on the 9-1515 Combo module, software switchable termination 2K/75 ohms.

1.SYNC-ON-GREEN - - negative-going sync on Green video input, either EIA or SMPTE (HD) spec compatible.

a.Analog/TTL Mode - - TTL-level computer syncs (VGA, Macintosh), NTSC/PAL/SECAM studio/commer-

b.Special Composite Mode - - NTSC/PAL/SECAM or SMPTE HD studio/commercial negative composite or tri-level analog sync (Black Video).

3.VERTICAL - - TTL-level computer syncs (VGA, Macintosh), NTSC/PAL/SECAM studio/commercial nega- tive vertical analog sync.

1.SYNC-ON-GREEN - - Horizontal component: 15kHz to

40kHz. Vertical component: 50 to 100 Hz.

2.HORIZONTAL/COMPOSITE - - Horizontal component: 15kHz to 40kHz. Vertical component: 50 to 100 Hz.

3.VERTICAL - - 50 to 100 Hz.

1.SYNC-ON-GREEN - - Sync portion: 300mV, +/- 150mV.

2.HORIZONTAL/COMPOSITE

a.Analog/TTL Mode - - 0.7Vp-p to 5Vp-p.

b.Special Composite Mode - - 300mV, +/- 150mV.

3.VERTICAL - - 0.7Vp-p to 5Vp-p.

1.SYNC-ON-GREEN - - negative.

2.HORIZONTAL/COMPOSITE

a.Analog/TTL Mode - - positive or negative.

b.Special Composite Mode - - negative.

3.VERTICAL - - positive or negative.

1.SYNC-ON-GREEN - - Minimum sync pulse width = 400nS.

2.HORIZONTAL/COMPOSITE

a.Analog/TTL Mode. - - Max duty cycle of sync pulse (Vsync in = 0.7Vp-p) = 15% Max duty cycle of sync pulse (Vsync in 1.4Vp-p) = 30%.

b.Special Composite Mode - - Minimum sync pulse width = 400nS.

3.VERTICAL - - Max duty cycle of sync pulse (Vsync in = 0.7Vp-p) = 15% Max duty cycle of sync pulse (Vsync in 1.4Vp-p) = 30%.

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