Filter
Top Products
8
4. Timing Signals
4.1 External Synchronization and Gen lock
The UM-100/UM-101 camera automatically locks to the external sync source. The external sync source must
match the camera HD and VD specification, which are 15.73KHz and 59.94Hz respectively. Both external HD
and VD are TTL level signals.
a) HD
H: 2.5V to 5V
L: 0V or GND
Pulse width: 5-50% duty cycle, see figure 10 shown below.
b) VD
H: 2.5V to 5V
L: 0V or GND
Pulse width: 0.5-50% duty cycles; must be RS-170 format (odd and even fields).
Figure 9. External Synchronization and Gen lock Timing
4.2 Integration
The UM-100/UM-101 camera can be integrated up to 2 seconds without severe noise or dark current effect.
Make sure the camera is set to frame mode before preceding any integration; this will ensure that there will be a
full frame video (both odd and even field). To start integration, pin #11 of the 12-pin connector must be connected
to GND or 0V. The integrated video will be shifted out following the next vertical drive after pin #11 goes back to
high or 5V level, as shown in figure 10 below. If a frame grabber does not capture the immediate two fields or
integrated video, the normal video (before the integration) will display again on the monitor.
Figure 10. Integration Control Timing