Parallel analog-to-digital conversion device and method for controlling deflection of analog-to-digital conversion channels

Abstract

The invention discloses a parallel analog-to-digital conversion device and a method for controlling deflection of analog-to-digital conversion channels. The conversion device comprises a clock device and a comprehensive detection processor, wherein the clock device outputs clock signals processed by phase adjustment to a sampling holder, so that the clock signals are sampled by a sampling holder and are subject to analog-to-digital conversion by an analog-to-digital converter; and the comprehensive detection processor detects to acquire the deflection amount of each analog-to-digital conversion channel according to the digital signals converted by the analog-to-digital converter, feeds the clock signals, which are obtained by carrying out corresponding phase adjustment on the clock signals output by the clock devices according to the deflection amounts, to the clock device. The invention has obvious cost advantage; the control method is flexible and simple, and can not be easily influenced by the external environment; and the sampling clocks can be locked on any required phases.

Description

technical field [0001] The invention relates to a parallel analog-to-digital conversion device, in particular to a parallel ADC device and a method for controlling ADC channel skew. Background technique [0002] An analog-to-digital converter (ADC, Analog Digital Converter) refers to an electronic component that converts an analog signal into a digital signal. The most important parameter of an analog-to-digital converter is the sampling rate, which defines the number of samples per second that are extracted from an analog signal and converted into a digital signal. The higher the sampling rate, the stronger the ability of the converter to process the input signal, and the better the performance of the converter. [0003] With the development trend of the communication industry towards high speed, large capacity and high bandwidth, the new generation of optical transmission communication system, especially in the 100G Ethernet system, in order to enhance the transmission ca...

AI Technical Summary

Problems solved by technology

However, this type of method needs to use at least one ADC channel for deviation comparison, which reduces the utilization rate of the equipment and increases the cost; moreover, the compensation circuit is mostly implemented by an analog circuit, and the response characteristics of the control loop are easily affected by the external environment. influence, so the reliability is poor

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