Hi people:

I'm looking for a frame grabber capable to digitize a composite video
signal from a tomograph (CT) with the following specifications. Can
some body suggest me one ?

And, what Pixel Clock Rate mean ?

------------------- 0000 ------------------------
Video Signal Specifications from a Tomograph

Sync format
- Composite video and sync

Color
- Composite video and sync (R,G,B)

Line vertical sync – No
Video polarity and amplitude – Negative 612.60 mV
Sync polarity and amplitude – Negative 285.60 mV
Set up blanking level – Present 53.55 mV
Total lines per Frame: 1091 Per Field: 545.5
Horizontal frequency: 30.048 kHz
Horizontal line time: 33.280 micro seg.
Horizontal front porch: 0.480 micro seg.
Horizontal sync top: 4.000 micro seg
Horizontal back porch: 4.000 micro seg
Horizontal blanking time: 6.080 micro seg

Time from last pixel trailing edge of horizontal sync: 5.92 micro seg
Time from trailing edge horizontal sync to first pixel: 2.40 micro seg
Vertical blanking time: 33.5 Lines (or): 1114.88 micro seg
Vertical front porch: 3 Lines (or): 99.84 micro seg
Vertical sync top: 5 Lines (or): 166.40 micro seg

Serrating pulses – Present Width 2.08 micro seg How many 9 Rate
Pre equalizing pulses – Present width 2.08 micro seg How many 6
Rate
Post equalizing pulses – present width 2.08 micro seg How many 6
Rate
Field Rate: 55.105 Hz
Pixel clock rate: 50.000 MHz
Aspect ratio: Right 1024 Left 1248
Bandwidth: 100 MHz
---------------------------- 0000 -------------------------------


Thank you in advance,

Adrian