On 14.01.2011 22:28, Charly Lima wrote: > What about using an ASIC instead of the FPGA for the DDC, for example AD6652 > from Analog Devices, and connect that directly to the USB 3.0 Controller? > Might > be cheaper? > <http://www.analog.com/en/digital-to-analog-converters/digital-updown-converters/ad6652/products/product.html>
DDC is a routine task and can be done in ASIC, that's right. However, i doubt that the ASIC can be attached directly to USB controllers, because you have to handle the data bus, control bus, controlling the frequency synthesizer. I think in any case you need a FPGA as glue logic. If the DDC is done in ASIC, the FPGA can be very small and cheap. > You can always put a USB 3.0 Card in a PCI Slot if your Computer if it does > not > already have USB 3.0. It s not expensive. USB 3 offers higher bandwidths than GiE, but GiE can be switched and allows large distances. So I would prefer GiE if the bandwidth is sufficient. For higher bandwidths, 10GbE would be an option for future developments. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
