When PCB layout area is not enough, we often use 4mil GND trace to shielding RF clock trace with 4mil spacing. ; _4 ]2 M/ F' [" A5 ~9 o' NIs this way enough to avoid RF clock signal to couple other signal trace near the 4mil trace? ; G5 l" ]6 E. i# t5 {1 P4 ~* cThanks
u r proposed to refer to 3W rule. 5 T% A3 B" p8 l0 O1 Zwhen clock trace is 5 mils, u will need 10 mils spacing.# R$ G, f/ u {
of course GND trace will help, but PTH through holes with proper interval will do it better.9 }+ T/ q" E9 @* T* ~- h/ _4 \ [! h
* S. c `' u3 I' j2 [1 I+ }3 qgoogle it for detailed information, please!