| GSM射频芯片内RC时间常数测量电路的设计 |
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| 引用本文： | 陈勖,徐峰,王新安,黄如. GSM射频芯片内RC时间常数测量电路的设计[J]. 微电子学, 2011, 41(1) |
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| 作者姓名： | 陈勖 徐峰 王新安 黄如 |
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| 作者单位： | 北京大学,深圳研究生院,集成微系统重点实验室,广东,深圳,518055 |
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| 摘 要： | 针对集成电路工艺容差所引起的器件偏差,设计了一款RC时间常数测量电路,适用于GSM系统的多相滤波器模块.电路采用可编程电容阵列,可快速调谐,以保证模块稳定.仿真结果表明,采用5位数控方式调谐电容阵列,调谐时间误差不超过三个时钟周期,满足系统要求.
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| 关 键 词： | 射频集成电路 RC测量 多相滤波器 运算放大器 |
Design of RC Time Constant Measuring Circuit in RF IC for GSM |
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| CHEN Xu,XU Feng,WANG Xin'an,HUANG Ru. Design of RC Time Constant Measuring Circuit in RF IC for GSM[J]. Microelectronics, 2011, 41(1) |
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| Authors: | CHEN Xu XU Feng WANG Xin'an HUANG Ru |
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| Affiliation: | CHEN Xu,XU Feng,WANG Xin'an,HUANG Ru(Key Laboratory of Integrated Micro-system,Shenzhen Graduate School of Peking University,Shenzhen 518055,P.R.China) |
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| Abstract: | To deal with device error caused by IC process,an RC time constant measuring circuit was designed for poly-phase filter module in GSM system.In this circuit,programmable capacitor arrays were used to rapidly tune parameters,which ensured stability of the module.Simulation results showed that,with 5 CNC mode tuning capacitor arrays,the tuning time error was no more than three clock cycles,which meets requirements of the system. |
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| Keywords: | RF IC RC measurement Poly-phase filter Operational amplifier |
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