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18 March 2010
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Multimedia Supplement: Tables
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A/D, D/A Conversion for HDTV
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| Table 1: VESA Standard vs. Other Video Standards
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| Type 1: RS-170*
| Type 2: RS-343
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Type 3: Euro
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Type 4: VESA
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| White (peak)
| +1.000V
| +0.714V
| +0.700V
| +0.700VDC
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| Black
| +0.075V
| +0.054V
| +0.000V
| +0.000VDC
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| Blank
| Reference
| Reference
| Reference
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+0.000VDC
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| Synctip
| -0.400V
| =0.286V
| -0.300V
| None
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Notes:
*
The mentioned "RS-xxx" standards are form the Electronics Industries Alliance (EIA)
White is defined as the peak signal level (excluding overshoot, ringing, noise, and similiar
transients)
Black is defined as the minimum signal level expected during the active video time. RS-170 and RS-343 standards define a difference between black and blank, known as the setup.
The sunctip level refers to the signal amplitude defined for the case of synco-video. In systems providing sync-on-video, this information would appear only on the green video signal, except in the case where red, green, and blue signal outputs are
being used to provide simultaneous monochrome outputs. Sync informatio is not provided on any video signal output when separate sync signals are in use. Sync-on-video may not be used when operating under VESA video signal standard.
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| Table 3: Popular PC Graphics Formats
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| Active area (lin. X col.)
| Frame rate (Hz)
| Pixel Freq. (MHz)
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640x480
VGA
| 60
72
75
85
| 25.175
31.5
31.5
36
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800x600
(SVGA)
| 56
60
72
75
85
| 36
40
50
49.5
56.25
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1024x768
(XGA)
(SVGA)
| 43 (I)
60
70
75
85
| 44.9
65
75
78.75
94.5
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1280x1024
(SVGA)
| 60
75
85
| 108
135
157.5
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1600x1200
(UXGA)
| 60
65
70
75
85
| 162
175.5
189
202.5
229.5
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| Table 4: Formats For Digital TV in US
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Vertical lines
(active video)
| Pixels
(active video)
| Aspect ratio
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Picture rate
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| 1,080
| 1,920
| 16:9
| 60P; 30P; 24P
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| 720
| 1280
| 16:9
| 60P; 30P; 24P
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| 483*
| 720
| 16:9 & 4:3
| 60P; 60I; 30P; 24P
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| 480
| 640
| 4:3
| 60P; 60I; 30P; 24P
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Notes:
(
P
= progressive,
I
= interlaced)
* The actual coded image is 704x480, due to MPEG2 compression restrictions,
which require the coded number of pixels per lines per frame to be a multiple of the macroblock size: 16 (progressive) or 32 (interlaced). The number shown is the active video area in the analog input signal.
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| Table 5: Uncompressed HDTV Data Rates (active video window only).
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| Format
| Parameters
| Pixel frequency
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| 1080I
| 1,920x 1,080/2x60
| 62.2 Mpixels/s
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| 720P
| 1,280x720x30
| 27.6 Mpixels/s
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| Table 6: 1081I/720P Total Sample Rates
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| Format
| Calculations
| Pixel frequency
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| 1080I
| 1,125x2,200x60/2
| 74.25 MHz
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| 720P
| 1,650x750x60
| 74.25 MHz
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