Want a Free Job Posting?

Buy a job posting today and the second one is on us. For a limited time only. Act Now.

Interview Question

Interview San Diego, CA

Discuss why it is best to use different values of

  decoupling capacitors in a power distribution network instead of a single capacitor.

Interview Answer

1 Answer


The loop inductance from a capacitor depends on its geometry, so by using different capacitor values it is possible to tune the self-resonant frequencies of the capacitor. By doing so, you can ensure the PDN is low impedence across a broad range of frequencies.

Interview Candidate on Aug 15, 2009

Add Answers or Comments

To comment on this, Sign In or Sign Up.