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A time-domain interleaved analog-to-digital converter synchronization device and method

A technology of analog-to-digital converter and analog-to-digital conversion, which is applied in the direction of analog-to-digital converter, analog-to-digital conversion, analog-to-digital conversion calibration/testing, etc., and can solve the problem of time-domain interleaving analog-to-digital converter data transmission asynchronous etc.

Active Publication Date: 2022-04-15
SUZHOU RIGOL PRECISION ELECTRIC TECH
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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a time-domain interleaved analog-to-digital converter synchronization device and method, which can solve the problem of asynchronous data transmission of the time-domain interleaved analog-to-digital converter

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  • A time-domain interleaved analog-to-digital converter synchronization device and method

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0017] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," et...

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Abstract

The application discloses a time-domain interleaving analog-to-digital converter synchronization device and method, which belong to the field of control systems. The device comprises: a time-domain interleaving analog-to-digital conversion module, whose input end is connected to a signal input end in a first state, interleaves and samples a target analog signal through a plurality of sub-analog-to-digital conversion modules, and outputs a multi-channel target digital signal; a calibration module, Its input end is connected with the time-domain interleaving analog-to-digital conversion module. In the first state, the multi-channel target digital signal is calibrated according to the delay error value, and the multi-channel calibration digital signal is obtained. The delay error value is in the second state, according to the reference If the analog signal and the synchronization control signal are determined, the reference analog signal is synchronized with the clock of the time-domain interleaving analog-to-digital conversion module, and the synchronization control signal is phase-synchronized with the reference analog signal; the waveform generator module, in the second state, is interleaved with the time domain The analog-to-digital conversion module is connected, and also connected with the calibration module, for outputting the reference analog signal and the synchronization control signal.

Description

technical field [0001] The present application belongs to the field of control systems, and in particular relates to a time-domain interleaving analog-to-digital converter synchronization device and method. Background technique [0002] Analog-to-Digital Converter (ADC) circuit refers to a circuit that converts analog signals into digital signals, and has a very wide range of applications. According to the Nyquist theorem, in order to increase the bandwidth of the ADC, the sampling rate must be increased first. There are many ways to increase the sampling rate. The simple and effective way is to use multiple ADCs in parallel so that they collect the same signal at different times, and finally splicing the collected signals at the output end in order, and finally output a higher sampling rate. Rate data, such an ADC is a time-domain interleaved ADC. [0003] Generally, the clock of time-domain interleaved ADC data output is 1 / N of the sampling clock, and N is related to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/10H03M1/12
CPCH03M1/1009H03M1/123H03M1/121
Inventor 罗浚洲许强王悦
Owner SUZHOU RIGOL PRECISION ELECTRIC TECH
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