chapter 8
RF Generator description
8.1 Overview
The RF generator is the electronic unit which translates the signal definitions in the computer
into the electrical signal
1
applied to the crystal and the ancillary logic signals interfacing with
the laser system.
The RF signal repeats periodically when the unit is programmed in the ”continuous” mode and
is generated only once for each trigger signal in the ”single” mode, see section 8.6 for timing
diagrams.
On the front panel are found the inputs trigger and aux controlling the generation process.
BNC outputs S1, S2, S3 and S4 on the rear panel are used for driving data acquisition &
control equipment and for monitoring signals with an oscilloscope for troubleshooting.
Figure 1.1 shows a simplified schematic of the RF generator.
8.2 Indicators
This sub-section describes the RF generator front panel LED indicators.
There are 6 LED indicators on the RF generator front panel: Power, L
1
, L
2
, trigger, aux
and rf on (above rf out output power SMA plug).
1
uniformly sampled arbitrary waveform
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