Communication receiving device and clock data recovery method
A receiving device and communication technology, applied to transmitter/receiver shaping network, digital transmission system, baseband system components, etc., can solve the problems of difficult operation of clock data recovery and inefficiency of clock data recovery operation, etc.
Active Publication Date: 2022-05-10
GLOBAL UNICHIP CORPORATION +1
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Problems solved by technology
However, inter-symbol interference in the signal makes the operation of clock data recovery difficult and makes the operation of clock data recovery less efficient
Method used
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[0043] The following is a detailed description of the embodiments in conjunction with the accompanying drawings, but the described specific embodiments are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention, and the description of the structure and operation is not used to limit its execution The sequence of any components recombined to produce a device with equivalent functions is within the scope of the disclosure of the embodiments of the present invention.
[0044] As used herein, "coupling" or "connection" can refer to two or more elements in direct physical or electrical contact with each other, or indirect physical or electrical contact with each other, and can also refer to two or more components. Components operate or act on each other.
[0045] In this document, the term "circuitry" generally refers to a single system formed by one or more circuits. The term "circuit" generally refers to ...
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A communication receiving device and a clock data recovery method. The communication receiving device includes a clock data recovery circuit for generating a clock according to the first digital signal, an analog-to-digital converter, a channel evaluation circuit, an equalizer and a selector. The analog-to-digital converter is coupled to the clock data recovery circuit for converting the analog signal according to the clock to generate a second digital signal. The channel evaluation circuit is used for analyzing the second digital signal to output a switching signal. The equalizer is coupled to the analog-to-digital converter for equalizing the second digital signal to generate a third digital signal. The selector is coupled between the equalizer and the clock data recovery circuit, and is used for outputting the second or third digital signal as the first digital signal according to the switching signal. The clock data recovery method of the communication receiving device provided in this case can make a proper trade-off between signal delay and signal distortion, so as to improve communication stability.
Description
technical field [0001] The present disclosure relates to a communication receiving device, in particular to a communication receiving device using a clock data recovery method. Background technique [0002] As the data transmission speed becomes higher and higher, the inter-symbol interference (ISI) in the signal becomes more and more serious, so the clock data recovery becomes more and more important. However, ISI in the signal makes the operation of clock data recovery difficult and inefficient. Contents of the invention [0003] An embodiment of the disclosure relates to a communication receiving device, which includes a clock data recovery circuit, an analog-to-digital converter, a channel evaluation circuit, a first equalizer, and a selector. The clock data recovery circuit is used for generating a clock signal according to the first digital signal. The analog-to-digital converter is coupled to the clock data recovery circuit for converting the first analog signal a...
Claims
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IPC IPC(8): H04B1/10H04L25/03
CPCH04B1/10H04L25/03006
Inventor 康文柱陈昱竹高洵伟
Owner GLOBAL UNICHIP CORPORATION