Agile RF synthesizer ARF/XRFx21
Fed up with assembling your own AOM drivers, with evaluation kits, military-style RF components, and a rack full of DC power supplies? Tired of blowing up yet another amplifier when you power up with no output connected? Horrified by the price of agile DDS synthesizers?
The MOGLabs ARF and XRF RF synthesizers are priced to stop you building your own; bullet-proof so you don't have to be frightened of turning it on; and incredibly agile to meet the needs of quantum ion and BEC research. And it has MOGLabs ergonomics, so you can use it as a simple self-contained AOM driver, or as an optical noise eater with analogue input and built-in PID feedback.
The device provides two channels of agile RF frequency synthesis with optional high-power RF amplifiers built-in. Each channel spans a frequency range of 20 – 400 MHz with output power up to 4 watts (+36dBm). The two channels can be used as simple manually controllable AOM drivers via front panel knobs to adjust frequency and output power, simultaneous FM and AM (or PM) modulation at up to 10MHz bandwidth, and servo feedback built-in for laser noise-eating or frequency locking.
The computer interface (10/100 ethernet and USB) allows full control of all parameters, including loading of FM, AM and PM data for triggered or looped playback. Fast frequency chirps or complex waveforms can be defined with 0.23 Hz, 0.2 mW and 0.4 mrad (0.02°) in time intervals as short as 16 ns (XRF). 16 digital input/output signals can be individually controlled in synchronisation with the DDS sequences.
The ARF and XRF use a fast FPGA to drive two AD9910 DDS cores. Communications are handled by two separate microcontrollers. FM, AM and PM sequences can be incredibly complex using interpolation, repeats, loops, ramps, and external triggers.
Optional extras: SMA breakout panel for 16-channel digital I/O, and analogue signal conditioning for noise eater and laser frequency lock applications.
All devices are two channel, independent or synchronised.
ARF: minimum time step 1 microsecond
XRF: minimum time step 16ns
ARF021/XRF021: 100mW per channel
ARF421/XRF421: 4W per channel
The datasheet is available here and under SUPPORT.
Software and firmware upgrades are available here.