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Calibration of interleaving errors in a multi-lane analog-to-digital converter

a multi-lane analog-to-digital converter and interleaving error technology, applied in the field of multi-lane analog-to-digital converters, can solve the problem that the digital input of the digital signal environment cannot longer accurately represent the analog inpu

Active Publication Date: 2014-06-19
AVAGO TECH INT SALES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent relates to a multi-lane analog-to-digital converter (ADC) and the compensation of impairments present within it. The technical effect of the patent is to provide a solution for compensating for unwanted phase offsets, bandwidth mismatches, and gain mismatches between lanes in a multi-lane ADC to ensure accurate representation of the analog input as digital signal in the digital signal environment.

Problems solved by technology

However, impairments within the multi-lane ADC can cause the digital input for the digital signal environment to no longer accurately represent the analog input.

Method used

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  • Calibration of interleaving errors in a multi-lane analog-to-digital converter
  • Calibration of interleaving errors in a multi-lane analog-to-digital converter
  • Calibration of interleaving errors in a multi-lane analog-to-digital converter

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Embodiment Construction

[0024]The following Detailed Description refers to accompanying drawings to illustrate exemplary embodiments consistent with the disclosure. References in the Detailed Description to “one exemplary embodiment,”“an exemplary embodiment,”“an example exemplary embodiment,” etc., indicate that the exemplary embodiment described can include a particular feature, structure, or characteristic, but every exemplary embodiment can not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same exemplary embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an exemplary embodiment, it is within the knowledge of those skilled in the relevant art(s) to affect such feature, structure, or characteristic in connection with other exemplary embodiments whether or not explicitly described.

[0025]The exemplary embodiments described herein are provided for illustrative pur...

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Abstract

A multi-lane analog-to-digital converter (ADC) is disclosed that is capable of compensating for one or more of its impairments such that its digital output accurately represents its analog input. The multi-lane ADC can compensate for unwanted phase offsets between multiple phases of a sampling clock used by the multi-lane ADC, unwanted bandwidth mismatches between lanes in the multi-lane ADC, and / or unwanted gain mismatches between the lanes in the multi-lane ADC to provide some examples.

Description

BACKGROUND[0001]1. Field of Disclosure[0002]The present disclosure relates generally to a multi-lane analog-to-digital converter (ADC) and specifically to compensation of impairments present within the multi-lane ADC.[0003]2. Related Art[0004]Data converters are frequently used in mixed-signal electronic systems. Mixed signal electronic systems include both an analog signal environment and a digital signal environment. The analog signal environment primarily operates upon an analog input while the digital signal environment primarily operates upon a digital input. Commonly, an analog-to-digital converter (ADC) is used to convert the analog input from the analog signal environment to the digital input for the digital signal environment.[0005]A multi-lane ADC includes multiple parallel lanes, or simply lanes, that sample the analog input utilizing multiple phases of a sampling clock and converts these samples from the analog signal domain to the digital signal domain. The multi-lane A...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H03M1/06
CPCH03M1/06H03M1/1057H03M1/1215
Inventor GOES, FRANK VAN DERWARD, CHRISTOPHERBULT, KLAAS
Owner AVAGO TECH INT SALES PTE LTD