David P. Reed wrote: > In interfacing a new 5 GHz up/downconverter to the USRP (my summer > project), I find that I need a 40 MHz frequency reference to drive a PLL > in the chip. My first prototype will interface using the Basic Rx/Tx > daughterboards, and it occurs to me that I can probably use one of the > DAC clocks for that. > > Should this work? Any other suggestions (at this stage I'd prefer to use > an existing, programmable source on the USRP, rather than another chip > and crystal)?
Does it need to be 40 MHz? 40 is going to be hard to produce cleanly on the board. 128 divided by any integer is much easier. Matt _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
