Signal converting apparatus for integrating analog-to-digital converter and digital-to-analog converter and integration unit
US7138932B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Aug 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal converting apparatus for integrating an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) and an integration unit thereof are provided. The present invention integrates ADC and DAC, that do not operate simultaneously, into a signal converting apparatus (SCA), wherein a control signal decides whether an analog-to-digital mode or a digital-to-analog mode is selected. By sharing the operational amplifiers and other components in the SCA, the chip area and the cost are significantly reduced. In addition, in the integration unit, by switching a plurality of capacitor sets with various capacitances, the capacitance coefficients required for switching ADC and DAC are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.