Comment by netrap

Electronics. Especially the concept of ADC/DACs. Connecting Analog to Digital in to an FPGA, etc. I read a document about PLLs and I barely understand the block diagrams, the math I can't even begin to understand the symbols. I'll start learning from a book, but get to a certain point, then a few days go by, then many days -- by then I feel like I have to restart from the beginning.