Gateway Support - Video and Sync Relationships

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Video and Sync Relationships
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Resolution and refresh rate	640 × 480 60 Hz	640 × 480 72 Hz	Type
Pixel timing ± .5%	39.722	31.746	nSec
Horizontal visible	640	640	Dots
Horizontal total	800	832	Dots
Horizontal front porch	16	16	Dots
Horizontal synchronization	96	40	Dots
Horizontal back porch	48	136	Dots
Horizontal blanking time	160	192	Dots
Vertical visible	480	480	lines
Vertical total	525	520	lines
Vertical front porch	10	1	lines
Vertical synchronization	2	3	lines
Vertical back porch	33	36	lines
Vertical blanking time	45	40	lines
Horizontal frequency	31.469	37.861	kHz
Vertical frequency	59.940	72.809	Hz
Vertical synchronization polarity	-	-	TTL
Horizontal synchronization polarity	-	-	TTL
Bandwidth	25.2	31.2	MHz

Aspect ratio	4:3
Dot pitch in millimeters(mm)	.83-1.04 (H) .79 (V)
Misconvergence (mm)(A,B&C) not more than these amounts:	0.8 in A area 1.7 in B area 2.0 in C area
Brightness	> 30 foot-Lamberts (FL)

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