An apparatus comprising a functional circuitry on a first die. Said function circuitry configured to drive an RF voltage isolation link with an RF signal responsive to receipt of a logic signal at a first logic state. Control circuitry modifies the frequency of the RF signal to spread harmonics to other...http://www.google.sh/patents/US7650130?utm_source=gb-gplus-sharePatent US7650130 - Spread spectrum isolator
