A CMOS IF transceiver with 90 dB linear control VGA for IMT-2000 application

2003 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.03CH37408) Pub Date : 2003-06-12 DOI:10.1109/VLSIC.2003.1221181

Yonk-Sik Youn, Jang-Hong Choi, Min-Hyung Cho, Seon‐Ho Han, M. Park

引用次数: 21

Abstract

A prototype IF transceiver has been integrated in 0.35 /spl mu/m CMOS technology. The chip includes VGAs and mixers for IMT-2000. The VGAs are controlled continuously in linear dB by using a proposed quasi-exponential gain control method. Measurements show that both VGAs have over 90 dB dynamic range and 9.5 dB NF in receiver. The -3 dB frequencies of the receiver and transmitter are 250 MHz and 430 MHz, respectively. Thus, the transceiver can adapt to PCS as well as IMT-2000 for potential dual-band application. With a single 3.0 V power supply, the VGAs and mixers consume 16 mA and 6 mA, respectively.

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用于IMT-2000应用的90 dB线性控制VGA的CMOS中频收发器

一个原型中频收发器已集成在0.35 /spl μ m CMOS技术。该芯片包括用于IMT-2000的VGAs和混频器。采用拟指数增益控制方法在线性dB内连续控制VGAs。测量结果表明，两种VGAs的动态范围均超过90 dB，接收机的NF值均超过9.5 dB。接收机和发射机的- 3db频率分别为250mhz和430mhz。因此，收发器可以适应PCS以及IMT-2000潜在的双频应用。使用单个3.0 V电源时，vga和混频器分别消耗16ma和6ma。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2003 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.03CH37408)

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