Method and device for high bandwidth receiver for high baud-rate communications
US12323124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Aug 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/245
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog front-end (AFE) device includes a sampler array, differential source follower circuits, and programmable attenuation circuits. The sampler array receives input and clock signals. The sampler array including sampling circuits each sampling and holding the input signal based on one of the clock signals. The differential source follower circuits include respective cross-coupled transistor circuits, which include cross-coupled transistors that adjust gain of the sampling circuits. The programmable attenuation circuits include a voltage-controlled resistor that is connected to a differential output of one of the cross-coupled transistor circuits and adjusts gain of a corresponding one of the sampling circuits. The programmable attenuation circuits further receive outputs of the sampling circuits and control signals, and, based on the control signals, adjust the gain for ones of the sampling circuits independently of other ones of the sampling circuits to compensate for gain mismatch between outputs of the sampling circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.