The clock recovery circuit is a key component in high-speed electrical time-division multiplexing (ETDM) transmission systems. In the case of clock extraction from non-return-to-zero (NRZ) signals, differentiation and full-wave rectification are indispensable. Exclusive OR/NOR circuits (XOR) are widely used for this purpose. In this paper, we describe an XOR IC fabricated with 0. 1-µm gate-length InAlAs/InGaAs/InP HEMTs for a 40-Gbit/s class clock recovery circuit. The IC was configured with a symmetrical Gilbert cell type XOR gate and two types of peaking techniques are used to achieve its high bit-rate. On-wafer-measurements indicate that the IC operates as fast as 80 Gbit/s and can extract a 40-GHz frequency component from 40-Gbit/s NRZ input signals. To confirm the feasibility of using the packaged XOR IC in clock recovery circuits, the conversion gain of the IC, which was operated as a differentiater and full-wave rectifier, was evaluated. Assuming that the input to the clock recovery circuit is a 1 Vp-p signal, the relatively high output power of -17 dBm can be obtained with low dependency on the length of the input pseudo-random bit streams. Furthermore, a clock recovery circuit was assembled using the packaged XOR IC, a waveguide filter and a commercial amplifier; it offers the practical system-bit-rate of 39. 81312 GHz with the low rms jitter of 900 fs.
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Koichi MURATA, Taiichi OTSUJI, Takatomo ENOKI, Yohtaro UMEDA, Mikio YONEYAMA, "Exclusive OR/NOR IC for 40-Gbit/s Clock Recovery Circuit" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 3, pp. 456-464, March 1999, doi: .
Abstract: The clock recovery circuit is a key component in high-speed electrical time-division multiplexing (ETDM) transmission systems. In the case of clock extraction from non-return-to-zero (NRZ) signals, differentiation and full-wave rectification are indispensable. Exclusive OR/NOR circuits (XOR) are widely used for this purpose. In this paper, we describe an XOR IC fabricated with 0. 1-µm gate-length InAlAs/InGaAs/InP HEMTs for a 40-Gbit/s class clock recovery circuit. The IC was configured with a symmetrical Gilbert cell type XOR gate and two types of peaking techniques are used to achieve its high bit-rate. On-wafer-measurements indicate that the IC operates as fast as 80 Gbit/s and can extract a 40-GHz frequency component from 40-Gbit/s NRZ input signals. To confirm the feasibility of using the packaged XOR IC in clock recovery circuits, the conversion gain of the IC, which was operated as a differentiater and full-wave rectifier, was evaluated. Assuming that the input to the clock recovery circuit is a 1 Vp-p signal, the relatively high output power of -17 dBm can be obtained with low dependency on the length of the input pseudo-random bit streams. Furthermore, a clock recovery circuit was assembled using the packaged XOR IC, a waveguide filter and a commercial amplifier; it offers the practical system-bit-rate of 39. 81312 GHz with the low rms jitter of 900 fs.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_3_456/_p
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@ARTICLE{e82-c_3_456,
author={Koichi MURATA, Taiichi OTSUJI, Takatomo ENOKI, Yohtaro UMEDA, Mikio YONEYAMA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Exclusive OR/NOR IC for 40-Gbit/s Clock Recovery Circuit},
year={1999},
volume={E82-C},
number={3},
pages={456-464},
abstract={The clock recovery circuit is a key component in high-speed electrical time-division multiplexing (ETDM) transmission systems. In the case of clock extraction from non-return-to-zero (NRZ) signals, differentiation and full-wave rectification are indispensable. Exclusive OR/NOR circuits (XOR) are widely used for this purpose. In this paper, we describe an XOR IC fabricated with 0. 1-µm gate-length InAlAs/InGaAs/InP HEMTs for a 40-Gbit/s class clock recovery circuit. The IC was configured with a symmetrical Gilbert cell type XOR gate and two types of peaking techniques are used to achieve its high bit-rate. On-wafer-measurements indicate that the IC operates as fast as 80 Gbit/s and can extract a 40-GHz frequency component from 40-Gbit/s NRZ input signals. To confirm the feasibility of using the packaged XOR IC in clock recovery circuits, the conversion gain of the IC, which was operated as a differentiater and full-wave rectifier, was evaluated. Assuming that the input to the clock recovery circuit is a 1 Vp-p signal, the relatively high output power of -17 dBm can be obtained with low dependency on the length of the input pseudo-random bit streams. Furthermore, a clock recovery circuit was assembled using the packaged XOR IC, a waveguide filter and a commercial amplifier; it offers the practical system-bit-rate of 39. 81312 GHz with the low rms jitter of 900 fs.},
keywords={},
doi={},
ISSN={},
month={March},}
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TY - JOUR
TI - Exclusive OR/NOR IC for 40-Gbit/s Clock Recovery Circuit
T2 - IEICE TRANSACTIONS on Electronics
SP - 456
EP - 464
AU - Koichi MURATA
AU - Taiichi OTSUJI
AU - Takatomo ENOKI
AU - Yohtaro UMEDA
AU - Mikio YONEYAMA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 1999
AB - The clock recovery circuit is a key component in high-speed electrical time-division multiplexing (ETDM) transmission systems. In the case of clock extraction from non-return-to-zero (NRZ) signals, differentiation and full-wave rectification are indispensable. Exclusive OR/NOR circuits (XOR) are widely used for this purpose. In this paper, we describe an XOR IC fabricated with 0. 1-µm gate-length InAlAs/InGaAs/InP HEMTs for a 40-Gbit/s class clock recovery circuit. The IC was configured with a symmetrical Gilbert cell type XOR gate and two types of peaking techniques are used to achieve its high bit-rate. On-wafer-measurements indicate that the IC operates as fast as 80 Gbit/s and can extract a 40-GHz frequency component from 40-Gbit/s NRZ input signals. To confirm the feasibility of using the packaged XOR IC in clock recovery circuits, the conversion gain of the IC, which was operated as a differentiater and full-wave rectifier, was evaluated. Assuming that the input to the clock recovery circuit is a 1 Vp-p signal, the relatively high output power of -17 dBm can be obtained with low dependency on the length of the input pseudo-random bit streams. Furthermore, a clock recovery circuit was assembled using the packaged XOR IC, a waveguide filter and a commercial amplifier; it offers the practical system-bit-rate of 39. 81312 GHz with the low rms jitter of 900 fs.
ER -