Hitachi HV-F31F - Manual (Page 56)

42
(2) External trigger operating mode: Mode 1
When external trigger signal is high
active, after the trigger signal rise, the
flash signal start/end can be set to
determine the flash time.
At the flash signal falling edge, the
internal VD signal is reset and the video
data are transmitted.
External Trigger
(High active)
A
Internal VD
minimum period = 1V
Internal Video
A B C D
Buffer Memory Write
Delay: 1250us
A
VD : 3H=126us
A
1Frame=66.6ms
15FPS
DATA transfer
(YUV 16bit)
The highest transmission
speed: 69ms
Exposure
Internal VD
Internal Video
Buffer Memory Write
DATA transfer
Internal HD
1H(cam)=
42us
3H(cam) = 126us
A
A
Delay: 1250us
DATA transfer START: 2.1ms
External Trigger
6 to 7H(cam) = 253 to 295us
Exposure
30us
Frame reset
Trigger pulse width > 43us
4.0us
12H(cam) = 506us
blank : 18 to 19H = 801us
1 Frame = 33.3ms 30FPS