A CMOS Analog Integrated Front End for L Band DAB Receiver

WANG Zi-qiang; CHI Bao-yong; LIN Min; HAN Shu-guang; LIU Lu; YAO Jin-ke; Wang Zhi-hua

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A CMOS Analog Integrated Front End for L Band DAB Receiver

更新时间：2025-07-16

- A CMOS Analog Integrated Front End for L Band DAB Receiver
- Acta Electronica Sinica Vol. 33, Issue 2, Pages: 254-257(2005)
- 作者机构：
  
  1. 清华大学电子工程系,北京,100080
  2. 清华大学微电子所,北京,100084
  3. 清华大学电子工程系北京,100080
  4. 清华大学微电子所北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN432
- Published：2005
- 稿件说明：
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WANG Zi-qiang, CHI Bao-yong, LIN Min, et al. A CMOS Analog Integrated Front End for L Band DAB Receiver[J]. Acta Electronica Sinica, 2005, 33(2): 254-257.
DOI：

WANG Zi-qiang, CHI Bao-yong, LIN Min, et al. A CMOS Analog Integrated Front End for L Band DAB Receiver[J]. Acta Electronica Sinica, 2005, 33(2): 254-257. DOI：

摘要

本文设计了使用CMOS工艺

单片集成的L波段数字声广播(DAB)接收机模拟前端.接收机前端应用了三种方法来提高镜像抑制度:低中频双正交weaver结构比一般的同相/正交(I/Q)两路下变频结构具有更高的镜像抑制能力;镜像抑制低噪声放大器(LNA)提供了额外的镜像信号抑制;具有相位和幅度校正功能的本振驱动器提供了更精确的正交本振信号.仿真显示接收机前端对镜像信号的抑制超过65dB

其级联噪声指数为4dB

输出三阶交调指数为22dBm.接收机前端使用TSMC 0.25μm CMOS工艺制作

版图核心面积为9mm

目前正在测试中.

Abstract

A fully integrated CMOS low-IF weaver receiver working at L-band for DAB (Digital Audio Broadcasting).The receiver takes use of three methods to enhance the image reject performance.Compared with traditional In-phase and Quadrature (I/Q) structure

double quadrature weaver architecture performs higher image reject.An image-reject Low noise Amplifier (LNA) supplies additional image reject in the whole band.The phase and magnitude calibration circuit in LO buffer improves the quadrature of the LO signals.As a result

the receiver can reject the image signal more than 65dB.The cascade noise figure is 4dB and OIP3 is 22dBm.The receiver is fabricated with 0.25μm TSMC CMOS technology.The core die area is 9mm

.It is now under test.

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