On-chip resistor divider compensation with a 2VRMS input
US10581390B2 · kind B2 · utility
0Cited by
6References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45531
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A new compensation system for an audio input reduces noise by matching feedback ratios in the positive and negative paths. A variable resistance network allows for fine control of resistance trimming in one of the signal paths, which allows for compensation between tolerance of resistors that are external to an integrated circuit and those that are internal to the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.