Google Research PRUDAQ is a 40MSPS ADC Data Acquisition (DAQ) Cape for BeagleBone Black & Green
Engineers at Google Research wanted to measure the strength of a carrier signals without having to use a bulky oscilloscope or DAQ (Data Acquisition) system, so they looked into several makers boards to achieve this task, eventually decided to go with BeagleBone Black / Green, and created their own PRUDAQ cape capable of sampling 40 million samples per second, and open source it all. PRUDAQ cape specifications: Dual-channel simultaneously-sampled 10-bit ADC (Analog Devices AD9201) Up to 20MSPS per channel (40MSPS total) theoretical 0-2V input voltage range (DC coupled) 4:1 analog switches in front of each channel provide a total of 8 single-ended analog inputs. (See here for differential input) SMA jacks for direct access to the 2 ADC channels Flexible clock options: External input via SMA jack Internal on-board 10MHz oscillator Programmable clock from BeagleBone GPIO pins Powered via BeagleBone headers – no external power needed Fully exposed BeagleBone headers […]