A CMOS IF transceiver with 90 dB linear control VGA for IMT-2000 application
A CMOS IF transceiver with 90 dB linear control VGA for IMT-2000 application
复制标题
适用于 IMT-2000 应用的具有 90 dB 线性控制 VGA 的 CMOS IF 收发器
DOI：
10.1109/vlsic.2003.1221181
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Park
中科院分区：
文献类型：
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作者：
Yonk;Jang;Min;Seon‐Ho Han;M. Park
一个原型中频收发器已集成在0.35 /spl μ/mCMOS工艺。该芯片包括用于IMT-2000的VGA和混频器。通过使用拟指数增益控制方法，VGA被连续地控制在线性dB。测试结果表明，两种VGA的动态范围均大于90 dB，接收端噪声系数均大于9.5 dB.接收机和发射机的-3 dB频率分别为250 MHz和430 MHz。因此，收发器可以适应PCS以及IMT-2000的潜在的双频应用。采用3.0 V单电源供电时，VGA和混频器的功耗分别为16 mA和6 mA。
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.