IQUDC30/IQUDC31/IQUDC32/IQUDC33
Connections
Issue 1 Rev 4
Page 26
© 2016 SAM
3.5.3 Reference Input
Operation to full specification is only possible with a correctly terminated, noise-free, stable,
black sync reference input. While lock may be achieved with an unsuitable sync source, the
increased jitter evident on the SDI output will affect locking and cable length performance at
the receiving equipment.
An external sync input to the module is made
via passive loop-through BNC connectors
which terminate in 75 Ohms.
Note:
If the loop-through facility is not used, the unused BNC socket must be fitted with a 75 Ohm
terminator.