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Specifications for rgb sync inputs – OPPO Digital Model PRO900X User Manual

Page 15

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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.

II. COMPATIBILITY
1. SYNC-ON-GREEN - - negative-going sync on Green video

input, either EIA or SMPTE (HD) spec compatible.

2. HORIZONTAL/COMPOSITE

a. Analog/TTL Mode - - TTL-level computer syncs (VGA,

SVGA, Macintosh), NTSC/PAL/SECAM studio/commer-
cial horizontal/composite analog sync.

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, SVGA,

Macintosh), NTSC/PAL/SECAM studio/commercial nega-
tive vertical analog sync.

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

50kHz. Vertical component: 50 to 100 Hz.

2. HORIZONTAL/COMPOSITE - - Horizontal component:

15kHz to 50kHz. Vertical component: 50 to 100 Hz.

3. VERTICAL - - 50 to 100 Hz.

IV. AMPLITUDE
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.

V. POLARITY
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.

VI. PULSE WIDTH OR DUTY CYCLE
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%.

3276-A

SPECIFICATIONS FOR RGB SYNC INPUTS

Version 2.1 December 21, 1995

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