A method and device for searching receiver analog front-end circuit parameters

Abstract

An embodiment of the present application provides a method and device for searching receiver analog front-end circuit parameters, the method includes: obtaining a plurality of eye diagram values ​​corresponding to interface parameter values ​​of at least some rows included in the lookup table, wherein the Each row in at least some of the rows corresponds to an eye diagram value, the analog front-end circuit of the receiver includes a plurality of sub-circuits, and the interface parameter values ​​of each row in the at least some of the rows included in the lookup table include multiple columns, and Each column corresponds to each sub-circuit in the plurality of sub-circuits; and the target interface parameter values ​​of the plurality of sub-circuits are determined according to the plurality of eye diagram values ​​and the eye diagram threshold. Some embodiments of the present application realize that the setting parameters of multiple sub-circuits of the analog front end of the receiving part can be jointly searched at the same time, and the mutual influence between multiple setting parameters can be solved, and the efficiency is high.

Description

technical field [0001] The present application relates to the field of circuit design, and specifically, the embodiments of the present application relate to a method and device for searching parameters of an analog front-end circuit of a receiver. Background technique [0002] In the field of high-speed serial communication, the transmission data rate of non-return-to-zero NRZ (Non-Return-to-Zero) encoding can be as high as 33Gbps. At the same time, the attenuation of high-speed data by the transmission channel shows low-pass characteristics, and the high-frequency components of high-speed data are attenuated. Much larger than the low-frequency component, when the data from the TX transmitter is transmitted to the RX receiver, the eye diagram opens very little or even closes, which poses a great challenge to the correct reception of RX data. [0003] In order to compensate for the attenuation of the transmission channel, the TX transmitter usually uses a feed-forward equali...

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Problems solved by technology

[0002] In the field of high-speed serial communication, the transmission data rate of non-return-to-zero NRZ (Non-Return-to-Zero) encoding can be as high as 33Gbps. At the same time, the attenuation of high-speed data by the transmission channel shows a low-pass characteristic, and the high-frequency components of high-speed data are attenuated. Much larger than the low-frequency component, when the data from the TX transmitter is transmitted to the RX receiver, the eye diagram opens very little or even closes, which poses a great challenge to the correct reception of RX data

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