UNM CMPE 650 - Project- Data Acquisition System

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CMPE 650: Digital Systems DesignProject: Data Acquisition SystemGoal: Design a four layer board to be fabricated at PCBExpress that digitizes an analog signal andproduces a digital data stream. The basic architecture of the system is shown in the following Fig-ure (red are optional components):The minimum system must have at least an ADC, an analog input, digital output and control inter-face. Minimum system specification is 100 kS/s, 12-bit digital output and a voltage range of 0-5V.See http://sine.ni.com/nips/cds/view/p/lang/en/nid/204053 for an example DAQ available fromNI. As I mentioned in class, you can incorporate the controller and memory + other componentsonto the PCB (shown in red) or you may opt to use the FPGA cards that I have in my office, whichwill provide the FPGA and memory. You can interface the FPGA card with your PCB using a rib-bon cable.Your system must be controlled through LABVIEW, i.e. start/stop/transfer data. The chip that youuse for the ADC is likely to be configurable, which also can be accomplished using LABVIEW.(Updates will be posted).Be sure to visit www.pcbexpress.com to get the design rules for the 4-layer board you’ll be fabri-cating.3 in.3 in.Analog inA/DnFPGApDigitalAMP/FilterMemoryI/O interfaceto LABVIEWmcontrolcontrolpHelpful references are ”Low Level Measurements, 5th Edition” from Keithley Instruments and“Data Acquisition and Control Handbook, 1st Edition” also from Keithley (courtesy of Joy).These books can be ordered free of charge on the Keithley website.Deadlines:April 18th: Schematic of the system architecture that you plan to implement.April 25th: Board layouts to be submitted to PCBExpress (due at the start of the lab)May 9th: Final system


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UNM CMPE 650 - Project- Data Acquisition System

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