Urukul is a 4 channel DDS-based frequency synthesizer for the EEM form factor. It provides sub-Hz frequency resolution, controlled phase steps, and accurate output amplitude control. We offer it in two variants, with either the AD9910 or the AD9912 chip.
+With the SU-Servo feature of ARTIQ, the AD9910 variant of Urukul (which has fine amplitude control) can be used in combination with the Sampler ADC to form a laser intensity servo. In this application, the Urukul card drives AOMs and photodiodes are connected to Sampler to monitor laser intensities. When ordering your system, specify that you want SU-Servo integrated into the gateware.
+ +In regular mode, various DDS features are supported, including frequency, phase and amplitude control, and AD9910 RAM mode. See the ARTIQ manual for more details.
+Sampler is an 8-channel, 16-bit ADC EEM with an update rate of up to 1.5MSPS (all channels simultaneously). It has low-noise differential front end with a digitally programmable gain, providing full-scale input ranges between +-10mV (G=1000) and +-10V (G=1).
+In SU-Servo mode, Sampler can be used in combination with Urukul to form a laser intensity servo. Otherwise, in regular mode, single sample values can be read out by ARTIQ kernels (due to CPU overhead, the actual sample rate in regular mode is reduced).
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