Utilization of the pll pair – Dataman 530 Series User Manual
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Development kit for DATAMAN 530
Programmer’s Guide
Dim data(8192) As Integer
Dim i As Long
For i = 0 To 8191 Step 1
data(i) = i / 2
Next
SetWaveform data(0), 8192, ONOFF_OFF
SetFrequency 10000
2.4. Utilization of the PLL pair
The DATAMAN 531 generator contains two PLLs which determine the output
frequency. Only one is active at a time. In case the software requires a step change of
the frequency, the PLL tuning can take 500ms in worst case. However, it is possible
to preset the second PLL to the new frequency. When the second PLL is preset to the
new frequency a change of the frequency doesn’t require PLL tuning. Use
PrepareFrequency to preset the second PLL. It is not necessary to preset the second
PLL if the step frequency change doesn’t occur or the longer settle time is tolerated
for the application.
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