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Apparatus and method for generating a modulated clock signal including harmonics that exhibit a known sideband configuration

Lars Svensson (Institutionen för datorteknik) ; Hans Lindkvist

An apparatus and method are provided that helps address the electromagnetic compatibility issues arising from the integration of digital circuitry and analog circuitry within a wireless mobile terminal (for example). Basically, the apparatus includes a clock generator capable of generating an unmodulated clock signal and a modulator capable of generating a modulated clock signal having selected clock pulses omitted from the unmodulated clock signal. The modulated clock signal includes a fundamental frequency and a plurality of harmonic frequencies that exhibit a known sideband configuration. The known sideband configuration can be selected such that there would be less harmonic content in a band where co-located analog circuitry could be adversely affected by electro-magnetic interference from the modulated clock signal.

Denna post skapades 2013-07-09. Senast ändrad 2013-07-09.
CPL Pubid: 179991


Institutioner (Chalmers)

Institutionen för datorteknik (2002-2004)


Data- och informationsvetenskap

Chalmers infrastruktur