Multi-time Averaging TDCs Implemented in an Actel Flash-based FPGA

被引：0

作者：

Qin, Xi ^{[1
]}

Feng, Changqing ^{[1
]}

Zhang, Deliang ^{[1
]}

Zhao, Lei ^{[1
]}

Liu, Shubin ^{[1
]}

An, Qi ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China

来源：

INDUSTRIAL INSTRUMENTATION AND CONTROL SYSTEMS II, PTS 1-3 | 2013年 / 336-338卷

关键词：

Time-to-digital convertor; Multi-time; Flash-based FPGA; Wave-union; Multi parallel delay chains;

D O I：

10.4028/www.scientific.net/AMM.336-338.9

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Theoretical analysis and performance of multi-time averaging TDCs are presented in this paper. The TDCs are implemented in an Actel flash-based FPGA A3PE1500 using delay lines for time interpolating and utilizing CMOS buffers as the delay elements. Wave-union and Multi parallel delay chains method are employed for multi-time averaging to improve timing performance. The 17 times Wave-union TDC can achieve a best resolution of 32 ps RMS, while the 20 times Multi delay chains TDC can achieve a minimum resolution of 23 Ps RMS. Without the multi-time scheme, the TDC resolution is 127 Ps RMS and 427 ps averaged bin size.

引用

页码：9 / 18

页数：10

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