Multiport Signal-Flow Analysis to Improve Signal Quality of Time-Interleaved Digital-to-Analog Converters
Summary :
This letter describes a method that characterizes and improves the performance of a time-interleaved (TI) digital-to-analog converter (DAC) system by using multiport signal-flow graphs at microwave frequencies. A commercial signal generator with two TI DACs was characterized through s-parameter measurements and was compared to the conventional method. Moreover, prefilters were applied to correct the response, resulting in an error-vector magnitude improvement of greater than 8 dB for a 64-quadrature-amplitude-modulated signal of 4.8 Gbps. As a result, the bandwidth limitation and the complex post processing of the conventional method could be minimized.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E101-C No.8 pp.685-689
- Publication Date
- 2018/08/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E101.C.685
- Type of Manuscript
- PAPER
- Category
- Electronic Instrumentation and Control
Authors
Youngcheol PARK
Hankuk University of Foreign Studies
Keyword
Latest Issue
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Youngcheol PARK, "Multiport Signal-Flow Analysis to Improve Signal Quality of Time-Interleaved Digital-to-Analog Converters" in IEICE TRANSACTIONS on Electronics,
vol. E101-C, no. 8, pp. 685-689, August 2018, doi: 10.1587/transele.E101.C.685.
Abstract: This letter describes a method that characterizes and improves the performance of a time-interleaved (TI) digital-to-analog converter (DAC) system by using multiport signal-flow graphs at microwave frequencies. A commercial signal generator with two TI DACs was characterized through s-parameter measurements and was compared to the conventional method. Moreover, prefilters were applied to correct the response, resulting in an error-vector magnitude improvement of greater than 8 dB for a 64-quadrature-amplitude-modulated signal of 4.8 Gbps. As a result, the bandwidth limitation and the complex post processing of the conventional method could be minimized.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E101.C.685/_p
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@ARTICLE{e101-c_8_685,
author={Youngcheol PARK, },
journal={IEICE TRANSACTIONS on Electronics},
title={Multiport Signal-Flow Analysis to Improve Signal Quality of Time-Interleaved Digital-to-Analog Converters},
year={2018},
volume={E101-C},
number={8},
pages={685-689},
abstract={This letter describes a method that characterizes and improves the performance of a time-interleaved (TI) digital-to-analog converter (DAC) system by using multiport signal-flow graphs at microwave frequencies. A commercial signal generator with two TI DACs was characterized through s-parameter measurements and was compared to the conventional method. Moreover, prefilters were applied to correct the response, resulting in an error-vector magnitude improvement of greater than 8 dB for a 64-quadrature-amplitude-modulated signal of 4.8 Gbps. As a result, the bandwidth limitation and the complex post processing of the conventional method could be minimized.},
keywords={},
doi={10.1587/transele.E101.C.685},
ISSN={1745-1353},
month={August},}
Copy
TY - JOUR
TI - Multiport Signal-Flow Analysis to Improve Signal Quality of Time-Interleaved Digital-to-Analog Converters
T2 - IEICE TRANSACTIONS on Electronics
SP - 685
EP - 689
AU - Youngcheol PARK
PY - 2018
DO - 10.1587/transele.E101.C.685
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E101-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2018
AB - This letter describes a method that characterizes and improves the performance of a time-interleaved (TI) digital-to-analog converter (DAC) system by using multiport signal-flow graphs at microwave frequencies. A commercial signal generator with two TI DACs was characterized through s-parameter measurements and was compared to the conventional method. Moreover, prefilters were applied to correct the response, resulting in an error-vector magnitude improvement of greater than 8 dB for a 64-quadrature-amplitude-modulated signal of 4.8 Gbps. As a result, the bandwidth limitation and the complex post processing of the conventional method could be minimized.
ER -
English
