Vertical timing, Horizontal timing, Pixel timing – Quantum Data 801GC User Manual

Page 344: Digital sync

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A-4

Appendix A: Specifications

Model 801GC, 801GF & 801GX¥Rev. A

Vertical Timing

Frequency Range: 1 to 650Hz
Vertical total scan lines per frame:

Range:

2 to 4096 lines (progressive)
5 to 4097 lines (interlace)

Step:

1 line (progressive)
2 lines (interlace)

Vertical active scan lines / frame:

Range:

1-1024 lines (Vtotal - 1)

Step:

1 line (progressive)
2 lines (interlace)

Vertical Sync pulse width:

Range:

1 to Vtot - Vact -VSdel lines

Step:

1 line

Modes:American or European
Vertcal Sync delay (front porch):

Range:

0 to Vtot - Vact -VSwid lines

Step:

1 line

Horizontal Timing

Frequency Range:

2.29 Ð 130KHz

Total pixels per line:

Range:

144 to 4096 pixels

(must be even below 125 MHZ pixel
clock rates and must be evenly
divisible by 4 above 125 MHz)

Step:

2 pixels below 125 MHz pixel clock
4 pixels above 125 MHz pixel clock

Active pixels per line:

Range:

16 to 2048 (limit Htotal - 32 pixels )

(RGB analog and TTL)

16 to 1024 pxls (TV and S-Video)

Step:

1 pixel below 125 MHz pixel clock
2 pixels above 125 MHz pixel clock

Sync pulse width:

Range:

1 to Htot - Hact -HSdel pixels

Step:

1 pixel below 125 MHz pixel clock
2 pixels above 125 MHz pixel clock

Sync delay (front porch):

Range:

1 to Htot - Hact -HSwid pixels

Step:

1 pixel below 125 MHz pixel clock
2 pixels above 125 MHz pielx clock

Pixel Timing

Frequency Range (MHz):

9.375 to 150 (RGB analog)
9.375 to 18 (801GX only TV, S-VIDEO)
9.375 to 55 (TTL digital video)

Step:

1.465 Hz

Jitter:

800ps line-to-line (1 sigma)

Accuracy:

50 ppm

Digital Sync

Modes:

Separate Horiz. & Vert.
Composite
Composite Configurations:
American HS OR'ed with VS
American Serrated
American Serr. &Eq.(interlaced only)
European HS OR'ed with VS
European Serrated
European Serr. & Eq.(interlaced only)

Eq. Pulse Width:

HSwidth / 2 pixels

Serr. Pulse Width: Htot - HSwid pixels (progressive)

[Htot/2] - HSwid pxls (interlace)

Equalization Interval:

Before:

0 to Vtot - Vact -VSwid - EqAfter Lines

After:

0 to Vtot - Vact -VSwid - EqBefore Lines

Step:

1 line

Interval Modes:

American (interval is equal to programmed value)
European (interval =1/2 line < programmed value)

Additional Model 801GC and 801GX Specifications

Outputs

RGB ANALOG VIDEO OUTPUTS

Source Z:

75-ohms

Output levels:

Video Swing: 0 to +1.0 V
Sync Swing: 0 to Ð 400 mV
Setup:

0 to 100 IRE

Autocal:

autoadjust (internal precision ref.)

Output protection: Output buffer/75

series term

Rise / Fall:

2 nSec. (typical)

Overshoot:

10% (all outputs terminated)

DIGITAL OUTPUTS

Source Z:

75-ohms

±

2%

Levels:

Ф0Х = 0 V Ф1Х = 5 V open circuit
Ф0Х = 0 VФ1Х = 2.5 V (term)

Rise / Fall : < 4.0 nSec

TV OUTPUT (801GX Only)

Source Z:

75-ohms

±

2%

Video Signal:

Composite (lum.,chrom. & burst)

Rise / Fall:

per RS-170A & CCIR stds

S-VIDEO OUTPUT (801GX Only)

Source Z:

75-ohms 2%

Signals:

Y(luminance); C ( chrominance)

Rise / Fall:

per RS-170A & CCIR stds

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