On Wed, 2 Dec 2015 21:12:42 -0500 Ian Stirling <[email protected]> wrote:
> Here's a video of Dave Jones soldering a QFN chip. > http://www.eevblog.com/2013/01/08/eevblog-408-schmart-board-0-4mm-qfn-smd-soldering/ Unfortunately, this technique only works if you don't have a ground pad to solder, which most of the RF chips have. Actually, a lot of them have no other ground pins than the ground pad. Also, the long traces for the breakout are prohibitive for RF stuff. Even if you just run it at 70MHz, the chip is designed for GHz operation, which means you have to treat all signals as if they were operating there. Otherwise you will have some funny effects. Attila Kinali PS: Please be aware that Dave Jones is often borderline wrong with what he presents in his videos. So take them with a grain of salt and check any "facts" independently before relying on them. -- It is upon moral qualities that a society is ultimately founded. All the prosperity and technological sophistication in the world is of no use without that foundation. -- Miss Matheson, The Diamond Age, Neil Stephenson _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
