So where do we request free samples from :P The question is how would you get this into a computer? If we round it up to 16 bits, it makes 4.6 Gigabytes per second. Would a FPGA even be able to keep up? Could people a lot smarter then me, discuss how this chip could even possibly be used?
Tim Ansell On Wed, 2005-04-27 at 12:54 -0700, Eric Blossom wrote: > The punchline is towards the end of this article: > > http://rfdesign.com/mag/radio_new_technology_facilitates > > TechnoConcepts' RF to digital converter is the first 5 GHz carrier > speed RF to digital converter capable of direct conversion of a 5 GHz > RF carrier, eliminating all analog IF circuits. This receiver is based > on a very high speed 5 GHz delta-sigma converter that digitizes > signals by modulating the analog input (radio signal) into a > high-speed 1-bit digital datastream. The datastream is then digitally > processed on the same IC to produce a high-resolution multiple bit > word stream sent at a slower data rate. This is the first device to > completely eliminate the need for conventional radio receiver > downconverters and the associated external analog components. This RF > to digital converter is a closed-loop system in which the order of the > loop and the input bandwidth may be changed to achieve the desired > resolution. A narrow bandwidth results in higher resolution than a > wide bandwidth. > > > > Parameter GaAs SiGe > > Maximum clock frequency > 5 GHz > 15 GHz > SINAD (signal to noise+distortion) > 70 dB > 110 dB > Eff. resolution bits at 2.5 GHz carrier: 14 bits 18 bits > 10 MHz BW 11 bits 14 bits > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
