Can you sample complex signals like WCDMA?

[eep2nw]

Sampling complex signals

Hi all,
Is it possible sample a WCDMA signal??? If possible, what kind of samplers could be used?


thanx...

 

[flatulent]

usual theory

Anything can be sampled if the sampling rate is at least twice the signal bandwidth. Your problem will be finding a sampler that is fast enough and with low enough jitter as well as a ADC that is fast enough. I suspect that you are venturing into an expensive hardware area.

 

[eep2nw]

Thanks. Cost isn't a problem. I'm more concerned whether there're samplers available to do the job properly and also the other parts (DSP platform, ADC, DAC). Any particular manufacturers or part numbers???

 

[harlan1]

Hi,
At this site you will find excellent products & application notes:

h**p://www.analog.com/Analog_Root/sitePage/mainSectionHome/0,2130,level4%3D%252D1%26level1%3D277%26level2%3D173%26level3%3D136,00.html

also h**p://www.ti.com/graychip/index.shtml
and h**p://www.intersil.com/design/Parametric/productendpoint.asp?cn=8

harlan1.