Hi,
We have a customer who has a mess of digitized data from some sort of aircraft system, and wants to play it back into some box for testing. It will be 2 channels of 16-bit data originally sampled at about 500 KHz, several hours worth. They want us to design a VME module with dacs and a huge amount of DRAM to store the data. We don't really want to do it - they only need a couple of boards - but we don't like to say no to these guys either.
So, couldn't he just use a small-box PC and a sound card? How fast can a high-end sound card output points? The CD standard was 44KHz, but I think there are 4x versions at least. Depending on his analog bandwidth requirements, 196K might work.
Can a fast sound card accept data at the 4x (or whatever) rate, or does it always accept 44K data and interpolate?
Who makes good high-end sound cards?
Thanks
John