Patent Number: 8,791,733

Title: Non-linear-error correction in fractional-N digital PLL frequency synthesizer

Abstract: The present disclosure relates to a frequency synthesizer. The frequency synthesizer includes a phase comparator having first and second input nodes. The first input node receives a reference signal having a reference frequency. A channel control block has an input that receives a channel word and an output coupled to the second input node of the phase comparator. A local oscillator (LO) output node provides an LO signal having an LO frequency based on the reference frequency and the channel word. A feedback back couples the LO output node to the second input node of the phase comparator through the channel control block. A non-linear error correction element is operably coupled on a coupling path extending between the phase comparator and the DCO.

Inventors: Tertinek; Stefan (Linz, AT), Mayer; Thomas (Linz, AT), Wicpalek; Christian (Puchenau, AT)

Assignee: Intel Mobile Communications GmbH

International Classification: H03L 7/06 (20060101)

Expiration Date: 7/29/12018