Variable-gain up-converter with current reuse for 5-GHz WLAN applications

被引：0
|
作者：
Presti, Calogero D. [1 ]
Carrara, Francesco [1 ]
Palmisano, Giuseppe [1 ]
机构：
[1] Catania Univ, Dipartimento Ingn Elett Electron & Sistemi, Fac Ingn, I-95125 Catania, Italy
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2007年 / 51卷 / 01期
关键词：
wireless LAN (WLAN); mixer; variable-gain amplifier; linear-in-dB; temperature stability;
D O I：
10.1007/s10470-007-9048-6
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A variable-gain up-conversion mixer for 5-GHz WLAN applications is presented, whose input stage is based on a novel variable gain transconductor. The proposed topology features reduced power consumption by exploiting dc current reuse for mixer biasing. Moreover, a new low-consumption control circuit is introduced, which achieves a temperature-stable and linear-in-dB characteristic, providing a 40-dB dynamic range within +/- 1 dB gain error.
引用
收藏
页码：51 / 54
页数：4
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