C9252DK-14 Datasheet, PDF (4/9 Pages) Hamamatsu Corporation – Flat panel sensor Large area with tiling construction, high-speed frame rate

Flat panel sensor C9252DK-14
s External trigger mode
To acquire images in external trigger mode, input an external trigger pulse as shown below. When the time Tvd has passed after
the rising edge of the external trigger pulse, synchronous signals and video signals are output.
When used in synchronization with a pulsed X-ray source, X-rays should be irradiated during the Txray period.
FRAME TIME (Tvc to Tmax)
RECOMMENDATION: 50 % OF FRAME TIME
ExtTrgLemo
ExtTrgGrb
(TTL)
Tvd
Tvc - Tvdpw
Txray
Vsync+
(LVDS)
Hsync+, Pclk+ and Data 1-12 are the same as internal trigger mode.
· Tmax is defined as the reciprocal of the minimum value of Sf (ext).
· Txray = FRAME TIME - Tvd - (Tvc - Tvdpw)
KACCC0341EB
Parameter
Symbol
Delay time (only external trigger mode) Tvd
Vsync Cycle time (internal trigger mode)
Tvc
Dummy pulse width
Tvdpw
Note: The numbers of siginificant figures is two. (except Tvc)
Value
127
6.86
603
(Typ.)
Unit
µs
ms
µs
s System requirements
To operate C9252DK-14 at full performance, the following system and peripherals are required.
· PC: IBM compatible PC running on Windows XP
· Digital frame grabber card: Monochrome 16 bits or more, pixel clock 15.15 MHz or more, LVDS interface synchronous signal
(See the frame grabber manual.)
The National Instruments IMAQ PCI-1424 (NI parts No. 777662-02) frame grabber has been verified to successfully acquire 13-
bit or 12-bit digital images from C9252DK-14. You can utilize the demonstration software that comes with the frame grabber as
a simple viewer, to acquire and save an image. To do so, refer to the frame grabber user’s guide for how to use the camera
information file for the demonstration software.
· Power source: A.vdd = +5.0 ± 0.1 V (1.6 A), D.vdd = +5.0 ± 0.1 V (400 mA)
Please use a low noise series power supply. (Avoid using a switching power supply.) A power cable (terminated with an DB-
25PF-N plug at one end and open at the other end; 2 m; see Table 3.), an external trigger cable (terminated with an
ECP.0S.302.CLL plug at one end and open at the other end; 5 m; see Table 4.) and an earth cable (AWG 18; 4 m) come supplied
with C9252DK-14. An optional frame grabber cable for interface with the 68-pin receptacle (see Table 1) on C9252DK-14 is
also available for synchronous signal, video output and external control.
The voltages described above are specified at the flat panel sensor side. The impedance of the power cable attached with the
flat panel sensor is low enough but it causes 0.1 V approx. drop. Therefore the voltage at the power source side should be set
0.1 V higher than the voltage specified above. Install a noise filter on the AC power input line to prevent surges on the AC line.
The earth terminal must be connected to a stable earth point to eliminate noise from surroundings.
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