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| 一种高线性低功耗基带Gm-C滤波器 | |
| 引用本文： | 杨利君,龚正,石寅,陈治明.一种高线性低功耗基带Gm-C滤波器[J].微电子学,2012,42(2):233-237. |
| 作者姓名： | 杨利君 龚正 石寅 陈治明 |
| 作者单位： | 1. 西安理工大学 电子工程系,西安 710048;苏州中科半导体集成技术研发中心,江苏 苏州 215021 2. 苏州中科半导体集成技术研发中心,江苏 苏州,215021 3. 西安理工大学 电子工程系,西安,710048 |
| 摘 要： | 介绍了一种应用于无线局域网(WLAN)收发机系统的跨导-电容(Gm-C)低通滤波器,该电路可工作于低电压,并且具有高线性度.该射频发射器中的滤波器采用截止频率为9.9 MHz的3阶切比雪夫低通滤波器,在30 MHz频率处的阻带衰减达到30.5 dB.由于采用跨导线性环技术,滤波器工作于1.2V电源电压时,IIP3可达13.5 dBm.电路采用0.13 μm CMOS工艺实现,滤波器芯片尺寸为0.52 mm×0.17 mm,消耗电流3.76 mA. |
| 关 键 词： | 无线局域网 跨导-电容 低通滤波器 跨导线性环 |
A Low Power Baseband Gm-C Filter with High Linearity |
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| YANG Lijun , GONG Zheng , SHI Yin , CHEN Zhiming.A Low Power Baseband Gm-C Filter with High Linearity[J].Microelectronics,2012,42(2):233-237. | |
| Authors: | YANG Lijun GONG Zheng SHI Yin CHEN Zhiming |
| Affiliation: | 1(1.Dept.of Electronic Engineering,Xi’an Univ.of Technol.,Xi’an,710048,P.R.China;2.Suzhou-CAS Semiconductor Integrated Technology Research Center,Suzhou,Jiangsu 215021,P.R.China) |
| Abstract: | A highly linear transconductance-C(Gm-C) low pass filter for WLAN transceiver was proposed,which could operate at low supply voltage.In the transmitter(Tx),a 9.9 MHz 3rd-order Chebyshev low pass filter was adopted,which had a 30.5 dB stop-band attenuation at 30 MHz frequency.By using translinear loop topology,the filter achieved an IIP3 up to 13.46 dBm.Fabricated in 0.13 μm standard CMOS technology,the proposed filter occupied a chip area of 0.52 mm × 0.17 mm and consumed 3.76 mA power from a 1.2 V supply. |
| Keywords: | WLAN Transconductance-C(Gm-C) Low pass filter Translinear loop |
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