timecop <[email protected]> writes: >> Yep, look for example, at X2/C10 (at X=3426, Y=2381) it is so close to X2/R9 >> and X2/R5. How will you avoid solder bridges there? In fact, the solder > > well, that particular area doesnt matter since they're actually > connected together anyway but yeah i agree placing pads THAT close > together is bogus.
That's one of my bad habits. 25 years ago as student I was working in a shop in Hamburg that built RF amplifiers, to transfer power, not information. (The preamps typically had 2 kW output power, the end stage 2MW.) One day I was supposed to put down an RF transistor and got scoffed at for putting in those inductors too. I put the (through hole pin) transitor case 0.5mm apart from the board. Since then, any trace on a pcb longer than 20 mils is an inductor to me :-) And since I do not have much experience with GHz class opamps, I tend to put the parts rather too close than too far apart. I do not want an oscillator there. And since we want to sample with 14-bit resolution, I do not want too big antennas on the input circuits either, to pick up digital noise from the back end. There are probably areas where I could move parts apart, but not in the mentioned area. -- Stephan _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
