On Tue, Jul 31, 2007 at 04:07:14PM -0400, Marcus Leech wrote: > What is the maximum DC supply voltage for the USRP? > > I've been running it off of a 5V switched supply, but I wanted to move > all power > supplies outside of the USRP cabinet that I have, so I'm using an > external 13.8V > supply, with a LM7805 regulator. The regulator is sagging due to high > current > demand, so I'm thinking of supplying 13.8V directly to the USRP--is > this safe?
No, the on board regulator can't dissipate the resulting power. You really should feed the USRP with 6.0V, not 5.0V. Some daughterboards take 6.0V and produce a local 5V analog supply from it. In a pinch, you could probably feed it 5.5V, but I wouldn't go any lower. Eric _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
