Sunday, December 8, 2013

ADC IF Results

Prj123 10.7MHz IF ADC for BeagleBone Black.  It uses the PRU with serial ADC in undersampling application with ceramic filter for narrow band SDR applications.  Bill of materials is ~$40 in parts and PCB, $45 BeagleBone Black.

Picture:


Schematic:


SDR Screenshot:


Commercial Broadcast FM Audio Sample:


video

Single tone input 3.3mVpp, 10.7MHz, maximum gain setting:





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