Circuitry and methods for use in mixed-signal circuitry
US9054722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Sep 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/745
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of calibrating switching circuitry, the switching circuitry comprising a measurement node and a plurality of output switches connected to the measurement node, and the circuitry being configured, in each clock cycle of a series of clock cycles, to control whether or not one or more of said output switches carry a given current based upon input data, the method comprising: inputting a plurality of different data sequences to the circuitry, each sequence causing a given pattern of voltages to occur at the measurement node as a result of currents passing through the output switches; measuring the voltages occurring at the measurement node for each said sequence; and calibrating the switching circuitry in dependence upon a result of said measuring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.