Timing Chart - Sony XC-HR90 Technical Manual

Timing Chart

When set to Mode 1 (Non-reset mode)
Setting the shutter speed using trigger pulse width
HD/VD input

Continuous VD input


Trigger 1
Shutter speed (Te)
External HD 1
External VD 1
(Continuous
T: T=under 10 µs
VD)
EXT-VD
Video out

WEN
990 H (Binning OFF)
495 H (Binning ON)
TRG
EXT-VD
EXT-VD
1 This is an external input signal. Make sure to input

both HD and VD signals.
2 Shutter speed (Te)

Te = Trigger pulse width + 5 µsec
(The effective trigger pulse width for the external
trigger shutter operation is between 2 µs and 1/4 s.)
3 Normal operation is resumed when the trigger pulse

width is 1/3 s or more. The trigger falling edge
restores external trigger shutter operation. At this
time, the 50 ms after the falling edge of the trigger
pulse is an external trigger input inhibition area.
There is no guarantee of operation for any trigger
input in this period.
External trigger shutter operation

Shutter speed
2
(Te) 2
T: T=under 10 µs
4

32 µs
10 µs
Normal operation
Trigger pulse width
3
4
4 If there is a falling edge on the external VD within a

period of +10 µs from the falling trigger edge (
and  in the figure), it is not defined whether the
image is output for the external VD falling edge or
the image is output for the next external VD falling
edge. ( in the figure shows that the image is
output for the next external VD.  shows the
image for the external VD.) In this case, see WEN
since output of the image and WEN make up a pair.
In any other case, the image is output for the
external VD falling edge after the trigger falling
edge ( in the figure).
Note
An image is not output correctly when the next trigger
is input before the image for the previous trigger has
been output.
Mode Setting
Mode transition state
External input
External trigger
inhibition area
shutter operation
3 (50 ms)

Shutter speed (Te)
10 µs or more

2
24