SYNC Function
Function Generators
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SYNC Synchronisation Function (GX 320 only)
The SYNC function is used to synchronise several GX 320 set up in a cascade
in order to create a variable phase multiple signal generator.
The frequency resolution of this function is: 37 mHz, the clock frequency of the
DDS is set at 10 MHz.
To limit the sampling effect the maximum frequency of the output signal is set at
100 kHz.
The Master generator supplies the Slave generators with the clock (Clk) used to
generate the signals (10 MHz) and a synchronisation signal (Ctrl). This allows
all the generators to start at the same time and control their phase offset.
Connections
Control signal (Ctrl):
Connect the Slave VCG IN BNCs to the Master.
Clock signal (Clk):
Connect the slave FREQ_EXT BNCs to the Master
TTL OUT.
Master
Slave1
Slave2
During signal generation disconnecting one of the Ctrl or Clk cables
desynchronises the generators.
To resynchronise them use the master’s ‘MAIN OUT ON/OFF’ key to
deactivate and then reactivate signal generation.