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Talon RTX 2767 Operating Manual
5.8
Sync Guidelines
When using your Talon recorder in a multi−channel phase−coherent recording appli−
cation, it is necessary to synchronize the A/D's clock circuit dividers. Additionally,
when recording data from the DDCs in a multi−channel phase−coherent application,
the DDCs' local oscillators must be synchronized. A sync pulse can be generated inter−
nally or externally to synchronize the clock dividers and DDC local oscillators.
Generating the sync pulse internally will assure that all channels have a consistent
phase offset from channel to channel. While the phase angle of any give channel will
not necessary be the same from one iteration to the next, the relationship between any
one channel and the other channels will remain consistent from iteration to iteration.
Generating the sync pulse externally provides the ability to synchronize the sync pulse
to an external trigger that can be used to start a recording. If you synchronizes the sync
and trigger, the phase angle of any given channel will be consistent from one iteration
to the next. Additionally, the phase offset from channel to channel will be consistent
from one iteration to the next.
Page 33
Rev.: 1.0
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