The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Pembezaan pada pengayun cip (OCO) dicadangkan dalam kertas ini untuk voltan bekalan rendah, ketepatan frekuensi tinggi dan permulaan pantas. Seni bina pembezaan membantu OCO mencapai nisbah penolakan bekalan kuasa (PSRR) yang baik tanpa menggunakan pengawal selia supaya OCO sesuai untuk voltan bekalan kuasa rendah 1.38V. Penjana voltan rujukan juga dibangunkan untuk menghasilkan dua voltan keluaran lebih rendah daripada Vbe untuk operasi voltan bekalan rendah. Frekuensi keluaran dikunci kepada 48MHz oleh gelung terkunci frekuensi (FLL) dan pekali suhu 3.3-ppm/°C frekuensi direalisasikan oleh teknik pelarasan nisbah voltan pembezaan (VRA pembezaan). Masa permulaan hanya 1.47μs kerana OCO pembezaan tidak diperlukan untuk mengecas kapasitor besar untuk pengurangan riak.
Guoqiang ZHANG
Renesas Electronics Corporation
Lingjin CAO
Renesas Electronics Corporation
Kosuke YAYAMA
Renesas Electronics Corporation
Akio KATSUSHIMA
Renesas Electronics Corporation
Takahiro MIKI
Renesas Electronics Corporation
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Salinan
Guoqiang ZHANG, Lingjin CAO, Kosuke YAYAMA, Akio KATSUSHIMA, Takahiro MIKI, "A Differential on Chip Oscillator with 1.47-μs Startup Time and 3.3-ppm/°C Temperature Coefficient of Frequency" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 2, pp. 499-505, February 2021, doi: 10.1587/transfun.2020GCP0007.
Abstract: A differential on chip oscillator (OCO) is proposed in this paper for low supply voltage, high frequency accuracy and fast startup. The differential architecture helps the OCO achieve a good power supply rejection ratio (PSRR) without using a regulator so as to make the OCO suitable for a low power supply voltage of 1.38V. A reference voltage generator is also developed to generate two output voltages lower than Vbe for low supply voltage operation. The output frequency is locked to 48MHz by a frequency-locked loop (FLL) and a 3.3-ppm/°C temperature coefficient of frequency is realized by the differential voltage ratio adjusting (differential VRA) technique. The startup time is only 1.47μs because the differential OCO is not necessary to charge a big capacitor for ripple reduction.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020GCP0007/_p
Salinan
@ARTICLE{e104-a_2_499,
author={Guoqiang ZHANG, Lingjin CAO, Kosuke YAYAMA, Akio KATSUSHIMA, Takahiro MIKI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Differential on Chip Oscillator with 1.47-μs Startup Time and 3.3-ppm/°C Temperature Coefficient of Frequency},
year={2021},
volume={E104-A},
number={2},
pages={499-505},
abstract={A differential on chip oscillator (OCO) is proposed in this paper for low supply voltage, high frequency accuracy and fast startup. The differential architecture helps the OCO achieve a good power supply rejection ratio (PSRR) without using a regulator so as to make the OCO suitable for a low power supply voltage of 1.38V. A reference voltage generator is also developed to generate two output voltages lower than Vbe for low supply voltage operation. The output frequency is locked to 48MHz by a frequency-locked loop (FLL) and a 3.3-ppm/°C temperature coefficient of frequency is realized by the differential voltage ratio adjusting (differential VRA) technique. The startup time is only 1.47μs because the differential OCO is not necessary to charge a big capacitor for ripple reduction.},
keywords={},
doi={10.1587/transfun.2020GCP0007},
ISSN={1745-1337},
month={February},}
Salinan
TY - JOUR
TI - A Differential on Chip Oscillator with 1.47-μs Startup Time and 3.3-ppm/°C Temperature Coefficient of Frequency
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 499
EP - 505
AU - Guoqiang ZHANG
AU - Lingjin CAO
AU - Kosuke YAYAMA
AU - Akio KATSUSHIMA
AU - Takahiro MIKI
PY - 2021
DO - 10.1587/transfun.2020GCP0007
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2021
AB - A differential on chip oscillator (OCO) is proposed in this paper for low supply voltage, high frequency accuracy and fast startup. The differential architecture helps the OCO achieve a good power supply rejection ratio (PSRR) without using a regulator so as to make the OCO suitable for a low power supply voltage of 1.38V. A reference voltage generator is also developed to generate two output voltages lower than Vbe for low supply voltage operation. The output frequency is locked to 48MHz by a frequency-locked loop (FLL) and a 3.3-ppm/°C temperature coefficient of frequency is realized by the differential voltage ratio adjusting (differential VRA) technique. The startup time is only 1.47μs because the differential OCO is not necessary to charge a big capacitor for ripple reduction.
ER -