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Windfreak Synth

This labscript device controls the Windfreak SynthHD and SynthHD Pro signal generators.

At present only static frequencies and DDS gating is supported. This driver also supports external referencing.

Note

There have been observed, infrequent instances where the device does not update to newly programmed values. This does not appear to be an issue with this code, but rather the device or the windfreak package. As with any new hardware; trust, but verify, the output. If you can reliably reproduce the problem, please create an issue so it can be addressed.

Installation

This driver requires the windfreak package available on pip. If using a version of Windows older than 10, you will need to install the usb driver available from windfreak.

Usage

Below is a basic script using the driver.

from labscript import *

from labscript_devices.PrawnBlaster.labscript_devices import PrawnBlaster
from labscript_devices.Windfreak.labscript_devices import WindfreakSynthHDPro

PrawnBlaster(name='prawn', com_port='COM6', num_pseudoclocks=1)

WindfreakSynthHDPro(name='WF', com_port="COM7")

StaticDDS('WF_A', WF, 'channel 0')

if __name__ == '__main__':

    WF.enable_output(0) # enables channel A (0)
    WF_A.setfreq(10, units = 'GHz')
    WF_A.setamp(-24) # in dBm
    WF_A.setphase(45) # in deg

    start(0)
    stop(1)

This driver supports the DDS Gate feature which can provide dynamic TTL control of the outputs. This is done by enabling the rf_enable triggering mode on the synth, as well as setting the correct digital_gate on the output. Note that both outputs will be toggled on/off when using rf_enable modulation.

It also supports external referencing of the device. The below script uses external clocking and gating features.

from labscript import *

from labscript_devices.PrawnBlaster.labscript_devices import PrawnBlaster
from labscript_devices.Windfreak.labscript_devices import WindfreakSynthHDPro
from labscript_devices.NI_DAQmx.Models.NI_USB_6343 import NI_USB_6343

PrawnBlaster(name='prawn', com_port='COM6', num_pseudoclocks=1)

NI_USB_6343(name='ni_6343', parent_device=prawn.clocklines[0],
            clock_terminal='/ni_usb_6343/PFI0',
            MAX_name='ni_usb_6343',
            )

WindfreakSynthHDPro(name='WF', com_port="COM7",
                    trigger_mode='rf enable',
                    reference_mode='external',
                    reference_frequency=10e6)

StaticDDS('WF_A', WF, 'channel 0',
          digital_gate={'device':ni_6343, 'connection':'port0/line0'})

if __name__ == '__main__':

   WF.enable_output(0) # enables channel A (0)
   WF_A.setfreq(10, units = 'GHz')
   WF_A.setamp(-24) # in dBm
   WF_A.setphase(45) # in deg

   t = 0
   start(t)

   # enable rf via digital gate for 1 ms at 10 ms
   t = 10e-3
   WF_A.enable(t)
   t += 1e-3
   WF_A.disable(t)

   stop(t+1e-3)

Detailed Documentation

.. automodule:: labscript_devices.Windfreak
   :members:
   :undoc-members:
   :show-inheritance:
   :private-members:


.. automodule:: labscript_devices.Windfreak.labscript_devices
   :members:
   :undoc-members:
   :show-inheritance:
   :private-members:


.. automodule:: labscript_devices.Windfreak.blacs_tabs
   :members:
   :undoc-members:
   :show-inheritance:
   :private-members:


.. automodule:: labscript_devices.Windfreak.blacs_workers
   :members:
   :undoc-members:
   :show-inheritance:
   :private-members: