Scalable high-swing transmitter with rise and/or fall time mismatch compensation
US8446173B1 · kind B1 · utility
77Cited by
33References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017509
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a high-swing voltage-mode transmitter or line driver. The transmitter can operate over a wide range of supply voltages. Increasing the available output swing merely involves increasing the supply voltage; the circuit adapts to maintain the desired output impedance. This allows for a tradeoff between output amplitude and power consumption. Another advantage of the proposed architecture is that it compensates for process, voltage, and temperature (PVT) and mismatch variations so as to keep rise and fall times matched. This feature reduces common-mode noise and hence EMI in systems in which the transmitter is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.