The Mystery of Bypass Capacitors

How do you design a high-speed digital circuit with enough bypass caps in the right area to supply all the peak power demands? You can’t listen to all the expert advice because it seems they can’t... [more]

Manufacturing by Design is the New DfM

Today’s SMT and PTH assembly processes are driven by component packaging technology and functional design requirements. These requirements are driving manufacturing/test toward “build right” and... [more]

Differential Pair Routing for SI and EMI Control

Differential pairs have been used in PC boards for years to carry high-speed serial and high-speed parallel data, in a variety of bus formats. Many board designers and engineers believe the rules... [more]

PC Board Grounding to Control Noise, EMI and Signal Integrity

When time-varying (AC) signals travel in the transmission lines of a board, state-changing electric and magnetic fields are present. These fields, when not controlled, are the source of noise and... [more]