From: Dave H. <dhy...@gm...> - 2007-11-09 20:01:20
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Hi, > I would like to do some signal processing with Gumstick, mainly > averaging and filtering. But ATMega128 can only do 76.9ksps, where I > would need at least 20Msps (Analogue signal bandwidth is about 5MHz). > > 20Msps ADC chips are quite cheap and common now, does anyone know of > any existing products that can do at least 8bit ADC at 20Msps, or do I > have to make my own? The only way I can see that you could possibly get close to 20 Msps is to have an ADC that sits right on the bus (i.e. a custom connex card). Even then, I'm highly dubious that you'd actually be able to get anywhere close to that kind of throughput, and actually do anything with the data. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |