A 5 GHz quadrature relaxation oscillator with mixing for improved testability or compact front-end implementation

被引：8
|
作者：
Oliveira, Luis Bica [1 ]
van den Bos, Chris [2 ]
Fernandes, Jorge R. [3 ]
Verhoeven, Chris J. M. [4 ]
Silva, Manuel M. [3 ]
机构：
[1] Univ Nova Lisboa, INESC ID, P-1000029 Lisbon, Portugal
[2] Systemat IC Design, NL-2623 CR Delft, Netherlands
[3] Univ Tecn Lisboa, INESC ID, P-1000029 Lisbon, Portugal
[4] Delft Univ Technol, Elect Res Lab Dimes, NL-2628 CD Delft, Netherlands
来源：
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | 2010年 / 38卷 / 04期
关键词：
quadrature oscillator; relaxation oscillator; mixer; quadrature error measurement; low-IF receivers; PHASE-NOISE; ERROR;
D O I：
10.1002/cta.562
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：
We demonstrate by measurements on a test circuit that a 5 GHz relaxation oscillator with accurate quadrature outputs and low phase-noise can be obtained, and that these favorable properties can be preserved while the mixing function is performed by this oscillator. This is useful either to measure the quadrature error at a low frequency, or to implement a low-intermediate frequency (IF) or zero-IF (homodyne) radio frequency front-end. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码：359 / 366
页数：8
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