Digital-to-time converter and calibration of digital-to-time converter

US8994573B2 · kind B2 · utility

Assignee

• Intel Mobile Communications GmbH · DE

Inventors

• Stephan Henzler · Munich, DE
• Markus Schimper · Erding, DE

Key dates

• Filing date: Mar 15, 2013
• Grant date: Mar 31, 2015
• Expiry date: Oct 5, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03M1/1014
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A digital-to-time converter (DTC) comprises a gate controller configured to generate a gate enable signal based on first and second digital values so that the gate enable signal has a first enable period and a second enable period for each pair of a first digital value and a second digital value. A gate conditionally passes a main clock signal to a gate output in response to the gate enable signal, the gate thus providing a gated signal at a gate output. A frequency divider generates a frequency divided signal as the output signal of the digital-to-time converter based on the gated signal. The DTC may be calibrated by a time-to-digital converter connected between an input for the main clock signal and an output of a delay element of the DTC.