scholarly journals Equalization based inter symbol interference mitigation for time-interleaved photonic analog-to-digital converters

2018 ◽  
Vol 26 (26) ◽  
pp. 34373 ◽  
Author(s):  
Zhengtao Jin ◽  
Guiling Wu ◽  
Fengfeng Shi ◽  
Jianping Chen
Keyword(s):  
Interference Mitigation ◽  
Analog To Digital Converters ◽  
Analog To Digital ◽  
Time Interleaved ◽  
Inter Symbol Interference

A Bandwidth Mismatch Optimization Technique in Time-Interleaved Analog-to-Digital Converters

2019 ◽  
Vol 28 (06) ◽  
pp. 1950090
Author(s):  
Jian Luo ◽  
Jing Li ◽  
Shuangyi Wu ◽  
Ning Ning ◽  
Yang Liu
Keyword(s):  
Simulated Annealing Algorithm ◽  
Dynamic Range ◽  
Optimization Technique ◽  
Analog To Digital Converters ◽  
Analog To Digital ◽  
Limited Bandwidth ◽  
Behavior Simulation ◽  
Calibration Methods ◽  
Time Interleaved ◽  
Sampling Sequences

In time-interleaved (TI) analog-to-digital converters (ADCs), bandwidth mismatches, caused by the limited bandwidth of input signal traces and sample circuits, seriously deteriorate the spurious-free dynamic range (SFDR) of the system. This paper analyzes the influence of bandwidth mismatch errors under different sampling sequences. Eventually, based on a randomization technique and the simulated annealing algorithm (SAA), a bandwidth mismatch optimization technique is presented that can work well with other bandwidth mismatch calibration methods. The behavior simulation results indicate that an improvement of 7[Formula: see text]dB in the SFDR can be achieved with this technique in a 16-channel TI-ADC after timing and gain calibration.

scholarly journals Polyphase Nonlinear Equalization of Time-Interleaved Analog-to-Digital Converters

2009 ◽  
Vol 3 (3) ◽  
pp. 362-373 ◽  
Author(s):  
Joel Goodman ◽  
Benjamin Miller ◽  
Matthew Herman ◽  
Gil Raz ◽  
Jeffrey Jackson
Keyword(s):  
Analog To Digital Converters ◽  
Analog To Digital ◽  
Nonlinear Equalization ◽  
Time Interleaved
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