Hamamatsu Photonics C15440-20UP, Instruction Manual

Page: 37 / 70

qCMOS Camera C15550-20UP Instruction manual_Ver.1.0
37
(3) Ultra quiet scan: CoaXPress, USB (Common to the two interfaces)
Exp1 = 172.8 µs to 1800 s (input in units of seconds)
1H = 172.8 µs
Exp2 = ROUNDUP (Exp1 / 1H) * Round up to integer
Vn1 = Number of vertical lines
Vn2 = (Vn1 + 6) / 2 + 2
Conditions Vn3
Exp2 < 13889
Exp2 < Vn2 0
Exp2
≥
Vn2 Exp2 - Vn2 + 1
Exp2
≥
13889 0
Vn4 = MAX (Vn2, Exp2)
Operation modes Calculation formula Horizontal Vertical Max frame rate (fps)
Free running mode
If (Exp2 < 1158):
1 / (Vn2 + Vn3) / 1H
Others:
1 / Exp2 / 1H
4096
2304 5.00
2048 5.62
1024 11.1
512 22.1
256 43.5
8 643
4 826
External trigger mode
(Edge trigger / Level trigger /
Global reset edge trigger /
Global reset level trigger)
1 / (Vn2 + Exp2 +3) / 1H 4096
2304 4.99
2048 5.61
1024 11.1
512 22.0
256 42.8
8 526
4 643
External trigger mode
(Synchronous readout trigger) 1 / (Vn4 + 1) / 1H
4096
2304 4.99
2048 5.61
1024 11.1
512 22.0
256 43.1
8 578
4 723
Note
•
The frame rate value is valid 3 digits and rounded down to 4th digit.
Note
•
The calculation formula and the frame rate value of Start trigger mode (External trigger mode) are
same as Free running mode. About this mode, refer to 11-1-6-3 “Start trigger mode”.
Note
• The calculation formula and the frame rate value do not depend on the bit depth of digital output.
Note
• Ultra quiet mode is used for the Photon number resolving mode.