Which FPGA for decoding 400ms 20Mb/s signal

[pawel]

Hi All

Is there any reccomendation of which FPGA I shall use to decode 20Mb/s digital signal?

The duration of the signal is about 400ms.

thanks for any info

Pawel

[DimensionFinder]

Hi Pawel: Could you provide us with more information regarding your application? When you ask which FPGA you should use, are you talking about the actual chip or the total solution (i.e. CompactRIO, PXI, etc.)? National Instruments does not sell FPGAs seperately but rather uses FPGAs in our products to provide customers with the flexibility to program FGPA applications. Let us know what exactly you are looking for. Regards, Jaideep J National Instruments

[pawel]

Hi Jaideep

I need to sample, decode and process a digital signal on line. The digital signal is at rate 80Mb/s, not 20Mb as I wrote in the title. My mistake. After the decoding (and having the digital waveform) the processing will comprise many summation and multiplikation - simmilar to digital filtering or FFT on 64 samples.

I am interested in complete plug-in card.

Thanks for help.

cheers

Pawel

[Richard P.]

Hi Pawel,

Is this a single digital line, or a digital port? When you say 64 samples, do you mean 64 samples that are in a time sequence? An array this large will not compile for an FPGA. Also, another good line of products to look into are the High-Speed Digital IO line,

http://sine.ni.com/nips/cds/view/p/lang/en/nid/12761

Many of these can be used in our Real-Time PXI systems for deterministic operation.

Richard

[pawel]

Hi Richard

That is only one line, actually LVDS so two lines.

I think that High-Speed Digital IO is a perfect solution. It goes with LVDS and easily over 200MB/s.

The only one big disadvantage, that I can not find it on PCI bus. The PXI is increasing the price for 300%.

Thanks a lot.

regards

Pawel

[Richard P.]

Hi Pawel,

http://sine.ni.com/nips/cds/view/p/lang/en/nid/202182

The 6562is available in PCI form. It is capable of up to 400Mb/s, and has LVDS interface built in.

[pawel]

Hi Richard

Great. That is it. Thanks a lot. I do not understand how come I did not find it before.

kind regards

Pawel