Apparatus for generating multiple radio frequencies in communication circuitry and associated methods

US6993314B2 · kind B2 · utility

Assignee

• Silicon Laboratories Inc. · US

Inventors

• Lysander Lim · Austin, US
• Caiyi Wang · Austin, US
• David R. Welland · Austin, US
• Donald A. Kerth · Austin, US
• Richard T. Behrens · Louisville, US
• Jeffrey W. Scott · Austin, US
• G. Diwakar Vishakhadatta · Austin, US
• G. Tyson Tuttle · Austin, US
• Vishnu Srinivasan · Austin, US

Key dates

• Filing date: Feb 13, 2002
• Grant date: Jan 31, 2006
• Expiry date: Jul 26, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B2215/064
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A radio-frequency (RF) apparatus capable of transmitting RF signals includes transmitter path circuitry. The transmitter path circuitry includes a voltage-controlled oscillator (VCO) circuitry. The VCO circuitry generates a first signal that has a first frequency. A divider circuitry couples to the VCO circuitry and, in response to the first signal, the divider circuitry generates a second signal that has a second frequency. The frequency of the second signal equals the frequency of the first signal divided by a number.