期刊文献+

用于802.11b发射通道的重构滤波器 被引量:1

A Reconstruction Opamp-RC Filter Used in Transmitter of WLAN 802.11 b
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摘要 提出了一种满足IEEE802.11b标准发射机的低功耗高线性度ChebyshevI型低通滤波器的设计并已实现。该滤波器建立在高增益带宽积运放的基础上,采用Leapfrog结构,最大程度地减小元件值、温漂和工艺容差对滤波器性能的影响,同时采用Opamp-RC技术提高了电路的动态范围和线性度。该滤波器用0.18μmCMOS实现,所占芯片面积为0.58mm×0.5mm,通过测试基本上达到系统提出的指标。该电路在1.8V的工作电压下,共消耗4.4mA电流。 A low-power high linearity ChebyshevI LPF is described,which is built in a high gain-bandwidth opamp,adoptting Leapfrog structure to minimize the sensitivity to devices' value which can be seriously affected by temperature derivation and process tolerance.Also it has used Opamp-RC technique to enhance the dynamic range of handled signal and the linearity of LPF.It is designed for 802.11 b wireless LAN application and has been implemented in 0.18 μm CMOS process.The whole die is 0.58 mm×0.5 mm.Test results s...
出处 《固体电子学研究与进展》 CAS CSCD 北大核心 2007年第2期264-268,共5页 Research & Progress of SSE
关键词 无线局域网 802.11b 滤波器 Opamp-RC 温度漂移 工艺容差 WLAN 802.11 b filter Opamp-RC temperature drift process tolerance
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参考文献5

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同被引文献11

  • 1RAZAVI B.模拟CMOS集成电路设计[M].陈贵灿,程军,张瑞智,等译.西安:西安交通大学出版社,2003:309-329.
  • 2佛朗哥.基于运算放大器和模拟集成电路的电路设计[M].刘树棠,译.西安:西安交通大学出版社,2004.
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