JAI TM-1325 Series, Руководство пользователя

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TM-1325 Series
16 Operation
3.8 Scan Modes
The TM-1325 supports the following scan modes:
3.8.1 Full Progressive Scan
The normal scan mode progressively scans a full frame of 1392 x 1040 pixels at 15/30 frames per second using
the standard 27.5MHz/55MHz pixel clock and a single channel output. In contrast to interlace-scan cameras, all
1040 lines in the frame are exposed simultaneously per image capture.
3.8.2 Partial Scan
Partial scan is a standard feature in the TM-1325. 500 lines and 250 lines partial scan is selectable. It outputs
an image center of 500 lines and 250 lines. At 500 lines, the frame rate is 58 frames/sec. At 250 lines, it is 100
frames/sec. Partial scanning outputs the full horizontal resolution, but limits the vertical resolution to increase
the frame rate. The partial scan modes are 1392 x 500 lines at 58 Hz, and 1392 x 250 lines at 100 Hz. The scan
mode is selectable by using the GUI or rear panel switches (TM-1325 LVDS model only).
3.9 External Sync
The TM-1325 accepts an external sync of standard HD and VD at TTL level for general locking to a system
synchronization signal. The frequency requirement is as follows:
30 fps: 15 fps:
fHD = 31.977 KHz ±5%
fVD = 30.08 Hz ± 5%
(Internal Master clock = 110.00 MHz,
Pixel clock = 55.00 MHz) fHD = 16 KHz ± 5%
fVD = 15.04Hz ± 5%
(Internal Master Clock = 55 MHz
Pixel Clock = 27.5 MHz)