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WL-FlexDDS: Flexible Multi-Channel Phase-Coherent 1GSps RF Source

Datasheet
Rev. 2c2 (06/2010)
(427kB PDF)

Description

FlexDDS is a multi-channel phase-coherent RF source. The design deliberately targets the needs of experimental physicists who want to control all signal parameters in real-time from a computer. Initially, a series of actions (like changes in amplitude or frequency, start of frequency sweeps,. . . ) is compiled into commands which are then transferred to the FlexDDS-Rack via a USB link. Each time a (real-time asynchronious) trigger input is activated, FlexDDS-Rack executes one or several commands and waits for the next trigger event. There is no limit on the number of successive commands as they are loaded continuously from the host computer.

One outstanding feature of FlexDDS is its defined and known phase relationship between channels. For example, two channels can easily be set up to produce an RF output at the same frequency and with equal phase (or specified phase offset). Slightly detuning the frequency of one channel will then linearly increase the phase difference between the two channels.

If you are unsure whether FlexDDS is suitable for your application, feel free to contact us.

Features:

  • Multi-channel operation with precisely known and adjustable phase relationship between channels
  • Real-time control of all signal parameters
  • Phase-continuous frequency tuning
  • Computer interface (e.g. USB 2.0 link)

Components:

  • FlexDDS-Rack: 19" rack which integrates the computer interface and power supplies.
    The rack can hold up to 8 independent FlexDDS RF generator slots and 1 frontpanel controller slot (FlexDDS-FPCtl).
  • FlexDDS: RF generator slot module
  • FlexDDS-FPCtl: Slot module for reference clock and trigger.

Full Rack: