Bidirectional multiplexed RF isolator
US8049573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2007 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Apr 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/542
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An isolator provides bidirectional data transfer for a plurality of communications channels. First and second dies are located on first and second sides of a voltage isolation barrier and have a first and second plurality of digital data input/output pins associated therewith. First circuitry on the first die and third circuitry on the second die serializes a plurality of parallel digital data inputs from the digital data input/output pins onto one link across the barrier and transmits synchronization clock signals associated with the digital data inputs over a link across the barrier. Second circuitry on the second die and fourth circuitry on the first die de-serializes the digital data inputs from the first link onto the second digital data input/output pins and receives the first synchronization clock signal associated with the digital data inputs on the second link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.