Sub-ranging digital to analog converter for radiofrequency amplification
US7183958B2 · kind B2 · utility
9Cited by
41References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Sep 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/745
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for amplifying a radiofrequency signal using a main Digital to Analog Converter (RFDAC) and a subordinate Digital to Analog Converter (Sub-DAC). The main RFDAC provides a first portion of a N-bit digital output, which specifies the amplification level of the radiofrequency signal, and the sub-DAC provides a second portion of the N-bit digital word. Together, the main RFDAC and the Sub-DAC convert a complete N-bit digital word, where N specifies the resolution of the output radiofrequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.