Differential data driver
US6069523A · kind A · utility
17Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45151
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital data driver includes a differential amplifier having transistors which operate as a push-pull amplifier in class C mode. The transistors are conductive or non-conductive and controlled in response to a differential data input signal. The driver provides current to a load resistor of an external equipment and the direction of the current flowing therein is reversed in response to the input data. The differential amplifier transistors are connected to other transistors which provide source impedance to the external equipment. The source impedance of the driver is a controllable characteristic impedance of e.g., 50 .OMEGA..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.