基于CSPI传输协议的自适应均衡器设计. (Chinese)

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Tytuł:: 基于CSPI传输协议的自适应均衡器设计. (Chinese)
Autorzy:: 赵斌
 张裕桦
 王照
 徐枫程
Temat:: COMPARATOR circuits
TECHNICAL specifications
PSYCHOLOGICAL feedback
DESIGN
TIME
Alternatywny tytuł:: Adaptive equalizer based on CSPI protocol. (English)
Źródło:: Chinese Journal of Liquid Crystal & Displays; 2021, Vol. 36 Issue 2, p1-9, 9p
Abstract (English):: In order to solve the signal attenuation through channel at high data rate，this paper will intro⁃ duce a 1.5GHz adaptive equalizer using error feedback at Rx. An equalizer based on discrete signal pro⁃ cess is applied to reduce convergence time. Firstly，PRBS used as the training data will be transported to the equalizer filter for high frequency compensation. Then it is sampled and sliced by the S/H circuit and slicer to obtain steep rising and falling characteristics. Finally，it is sent to a comparator which is different with conventional comparator. There is an internal register in proposed comparator to store input signal. Error between input and desired value will be fed back through the closed loop to increase equalizer boost⁃ ing gain. After several times iteration，useable gains are acquired and the median is selected as the optimal gain. If no suitable gain is found，Tx will increase pre-emphasis setting and adaptive iteration progress at Rx repeats. Finally，the setting gain will be sent to inform Tx. The compensation ranges from 1 to 16dB. An experiment at 65inch 8K module using CSPI protocol is carried out，where the validity of the proposed design is verified by feedback setting at Tx. The requirement that CSPI protocol data could be received andrecoveredwithoutdistortionbyRxathighdatarateismet. [ABSTRACT FROM AUTHOR]
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