Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications

Wujun Xie; Haochang Chen; Zhenya Zang; David Day-Uei Li

doi:10.1109/EBCCSP51266.2020.9291360

Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications

Wujun Xie, Haochang Chen, Zhenya Zang, David Day-Uei Li

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

8 Citations (Scopus)

74 Downloads (Pure)

Abstract

This paper proposes a new calibration method, the mixed-binning method, to pursue a TDC with high linearity in field-programmable gate arrays (FPGAs). This method can reduce the nonlinearity caused by large clock skews in FPGAs efficiently. Therefore, a wide dynamic range tapped delay line (TDL) TDC has been developed with maintained linearity. We evaluated this method in Xilinx 20nm UltraScale FPGAs and Xilinx 28nm Virtex-7 FPGAs. Results conduct that this method is perfectly suitable for driverless vehicle applications which require high linearity with an acceptable resolution. The proposed method also has great potentials for multi-channel applications, due to the low logic resource consumption. For a quick proof-of-concept demonstration, an 8-channel solution has also been implemented. It can be further extended to a 64-channel version soon.

Original language	English
Title of host publication	2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)
Place of Publication	Piscataway, NJ
Publisher	IEEE
Number of pages	4
ISBN (Print)	9781728195810
DOIs	https://doi.org/10.1109/EBCCSP51266.2020.9291360
Publication status	Published - 25 Dec 2020
Event	6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP) - Duration: 23 Sept 2020 → 25 Sept 2020 https://ebccsp2020.org/program/

Conference

Conference	6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)
Period	23/09/20 → 25/09/20
Internet address	https://ebccsp2020.org/program/

Keywords

carry chains
field-programmable gate array (FPGA)
time of flight
time-to-digital converter (TDC)
automatic vehicle

Access to Document

10.1109/EBCCSP51266.2020.9291360

Xie-etal-EBCCSP2020-Multi-channel-high-linearity-time-to-digital-convertersAccepted author manuscript, 1.66 MB

Cite this

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title = "Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications",

abstract = "This paper proposes a new calibration method, the mixed-binning method, to pursue a TDC with high linearity in field-programmable gate arrays (FPGAs). This method can reduce the nonlinearity caused by large clock skews in FPGAs efficiently. Therefore, a wide dynamic range tapped delay line (TDL) TDC has been developed with maintained linearity. We evaluated this method in Xilinx 20nm UltraScale FPGAs and Xilinx 28nm Virtex-7 FPGAs. Results conduct that this method is perfectly suitable for driverless vehicle applications which require high linearity with an acceptable resolution. The proposed method also has great potentials for multi-channel applications, due to the low logic resource consumption. For a quick proof-of-concept demonstration, an 8-channel solution has also been implemented. It can be further extended to a 64-channel version soon.",

keywords = "carry chains, field-programmable gate array (FPGA), time of flight, time-to-digital converter (TDC), automatic vehicle",

author = "Wujun Xie and Haochang Chen and Zhenya Zang and Li, {David Day-Uei}",

note = "{\textcopyright} 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)<br/> ; Conference date: 23-09-2020 Through 25-09-2020",

year = "2020",

month = dec,

day = "25",

doi = "10.1109/EBCCSP51266.2020.9291360",

language = "English",

isbn = "9781728195810",

booktitle = "2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)",

publisher = "IEEE",

url = "https://ebccsp2020.org/program/",

}

Xie, W, Chen, H, Zang, Z & Li, DD-U 2020, Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications. in 2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP). IEEE, Piscataway, NJ, 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)
, 23/09/20. https://doi.org/10.1109/EBCCSP51266.2020.9291360

Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications. / Xie, Wujun; Chen, Haochang; Zang, Zhenya et al.
2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP). Piscataway, NJ: IEEE, 2020.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications

AU - Xie, Wujun

AU - Chen, Haochang

AU - Zang, Zhenya

AU - Li, David Day-Uei

N1 - © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2020/12/25

Y1 - 2020/12/25

N2 - This paper proposes a new calibration method, the mixed-binning method, to pursue a TDC with high linearity in field-programmable gate arrays (FPGAs). This method can reduce the nonlinearity caused by large clock skews in FPGAs efficiently. Therefore, a wide dynamic range tapped delay line (TDL) TDC has been developed with maintained linearity. We evaluated this method in Xilinx 20nm UltraScale FPGAs and Xilinx 28nm Virtex-7 FPGAs. Results conduct that this method is perfectly suitable for driverless vehicle applications which require high linearity with an acceptable resolution. The proposed method also has great potentials for multi-channel applications, due to the low logic resource consumption. For a quick proof-of-concept demonstration, an 8-channel solution has also been implemented. It can be further extended to a 64-channel version soon.

AB - This paper proposes a new calibration method, the mixed-binning method, to pursue a TDC with high linearity in field-programmable gate arrays (FPGAs). This method can reduce the nonlinearity caused by large clock skews in FPGAs efficiently. Therefore, a wide dynamic range tapped delay line (TDL) TDC has been developed with maintained linearity. We evaluated this method in Xilinx 20nm UltraScale FPGAs and Xilinx 28nm Virtex-7 FPGAs. Results conduct that this method is perfectly suitable for driverless vehicle applications which require high linearity with an acceptable resolution. The proposed method also has great potentials for multi-channel applications, due to the low logic resource consumption. For a quick proof-of-concept demonstration, an 8-channel solution has also been implemented. It can be further extended to a 64-channel version soon.

KW - carry chains

KW - field-programmable gate array (FPGA)

KW - time of flight

KW - time-to-digital converter (TDC)

KW - automatic vehicle

U2 - 10.1109/EBCCSP51266.2020.9291360

DO - 10.1109/EBCCSP51266.2020.9291360

M3 - Conference contribution book

SN - 9781728195810

BT - 2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)

PB - IEEE

CY - Piscataway, NJ

T2 - 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)<br/>

Y2 - 23 September 2020 through 25 September 2020

ER -

Multi-channel high-linearity time-to-digital converters in 20 nm and 28 nm FPGAs for LiDAR applications

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Keywords

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