【摘要】 介绍了采用0.35μm CMOS工艺实现的单边带上变频混频电路。该混频电路可用于低中频直接混频的PCS1900(1 850~1 910 MHz)发射器系统中。电路采用了multi-tanh线性化技术,可以得到较高的线性度。在单电源+3.3 V下,上混频器电流约为6 mA。从上混频电路输出级测得IIP3约8 dBm,IP1dB压缩点约为0 dBm。更多还原

【Abstract】 This paper presents a single side band up-mixer fabricated by SMIC 0.35 μm CMOS technology.It can be used in low-IF direct conversion PCS1900(1850～1910 MHz)transceiver system.The mixer is based on multi-tanh linearization technique and achieves high linearity.It operates at a single power supply of 3.3 V and consumes less than 6 mA.The up-mixer with the output buffer achieves an IIP3 of 8 dBm and an input P1dB gain compression point of 0 dBm.更多还原