A Radiation-Hardened Frequency-Locked Loop On-Chip Oscillator with 33.6ppm/°C Stability for Space Applications

被引：0

作者：

Passos, F. ^{[1
]}

Vieira, R. ^{[1
]}

Canelas, A. ^{[1
]}

Povoa, R. ^{[1
,2
]}

Lourenco, N. ^{[1
]}

Horta, N. ^{[1
]}

Guilherme, J. ^{[1
,3
]}

机构：

[1] Inst Telecomunicacoes, Lisbon, Portugal

[2] Escola Super Naut Infante D Henrique, Oeiras, Portugal

[3] Escola Super Tecnol Tomar, Tomar, Portugal

来源：

2022 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 22) | 2022年

基金：

欧盟地平线“2020”;

关键词：

Frequency-locked loop; oscillator; radiation hardened; space applications;

D O I：

10.1109/ISCAS48785.2022.9937971

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work presents a 16MHz on-chip oscillator based on a frequency-locked loop (FLL) which is radiation hardened by design and intended for space applications. The oscillator maintains a high temperature stability over a wide range of temperatures, process and voltage variations. The FLL presents a 7-stage current starved ring oscillator using output signal combiners for lower radiation sensitivity. Furthermore, the system presents high reconfigurability by using several DACs to adjust the oscillator's output frequency and the temperature slope dependency. This reconfigurability is especially useful to maintain all performances across PVT variations.

引用

页码：1704 / 1708

页数：5

共 21 条

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