On Sat, 2004-09-18 at 15:33, Marc Nicholas wrote:
> Memory bandwidth is the limiting factor. ZBT/SRAM (which is probably the 
> best design choice for a number of reasons; I'll elaborate my reasoning 
> behind that if anyone is interested) tops out at 200Mhz.

Actually I don't consider memory bandwidth the limit at all. There is
nothing to say that your memory has to be only as wide as the sample
size, you could use 128bit wide memory and capture 2 8 bit samples at a
time, meaning one memory access could store 8 samples, turning your
200MHz memory speed into 800MSps.

Or, another similar way is to use memory banks, 4 banks of memory each
selected in order.

TTYL
 
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