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Calibration and tracking of receiver

A technology of converters, subcomponents, used in information transmission. Fields that can solve problems such as inefficient system design, complexity, and suboptimal costs

Active Publication Date: 2018-05-11
镁可联通解决方案有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such an approach would also rely on some form of knowledge of the precise signal characteristics and would be of limited use
Additionally, these traditional approaches can also have undesirable costs and can have complex and / or inefficient system designs

Method used

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  • Calibration and tracking of receiver
  • Calibration and tracking of receiver
  • Calibration and tracking of receiver

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Embodiment Construction

[0022] Techniques for calibrating interleaved analog-to-digital converter (ADC) arrays are presented. The transceiver assembly can include an ADC assembly that includes an array of interleaved ADC subassemblies (also referred to herein as sub-ADCs) and an auxiliary path associated with an auxiliary sub-ADC that can be used to compare the auxiliary path signal with the sub-ADCs in the array. ADC signals to facilitate calibration of the sub-ADCs in the array. The auxiliary path can be designed to closely match the processing paths of the other sub-ADCs.

[0023] The transceiver component is capable of receiving a signal (eg, an analog signal) including data from a remote transmitter component (eg, a transmitter, transceiver, or another type of communication device). When the transceiver component receives an analog signal, the interleaver component can interleave the received analog signal on the sub-ADCs in the array, wherein the interleaver component or the calibration compon...

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Abstract

Techniques for calibrating interleaved analog-to-digital converter (ADC) arrays are presented. A transceiver comprises an ADC component comprising an array of interleaved sub-ADCs, and an auxiliary path associated with an auxiliary sub-ADC used to facilitate calibrating a sampling array by comparing the auxiliary path signal to signals of the sub-ADCs in the array. A calibration component employsa phase-interpolator and analog delay lines to adjust the auxiliary sub-ADC to enable the auxiliary sub-ADC to be lined up to any one of the sampling instants of the sampling array. The calibration component compares the auxiliary signal to sub-ADC signals, determines path differences between the sub-ADC paths based on the comparison results, and calibrates the sub-ADCs and sub-ADC paths to reducethe path differences to mitigate distortion in a digital stream produced from combining the digital substreams produced by the sub-ADCs in the array.

Description

technical field [0001] This disclosure relates to information transfer. Background technique [0002] Communication devices, such as transceivers, can be used to transmit or receive voice data or other data to or from other communication devices. Voice data or other data can be transmitted via wired or wireless communication connections. One trend is to increase the amount of data that can be transferred and the rate at which data is transferred. [0003] As transmission data rates, speeds, and bandwidths increase, the circuits used to send, process, and receive data must also handle high-bandwidth signals. One component used by many systems that use digital signal processing is an analog-to-digital converter (ADC), which can be used to convert an analog signal (eg, a speech signal) into digital form for further digital signal processing. One approach to designing ADCs capable of supporting relatively high bandwidths at high sampling speeds is to interleave ADC arrays (eg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/10H03M1/12
CPCH04B17/14H03M1/0678H03M1/0836H03M1/1009H03M1/1215H04B17/21
Inventor 摩西·马尔金塔伦·古普塔
Owner 镁可联通解决方案有限公司
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