A Low Noise and Highly Linear Wideband CMOS RF Front-End Circuits for Digital TV Tuners
This paper presents an integrated low noise and highly linear wideband RF front-end circuits for a digital terrestrial and cable TV tuner,which are used as a part of double conversion zero-IF tuner. The low noise amplifier (LNA) shows a low noise figure and high linearity by adopting a noise canceling technique based on current amplification. The up-conversion mixer has high linearity by employing a third order intermodulation cancellation technique. The RF front-end circuits are designed in a 0.18μm CMOS and draw 58 mA from a 1.8 V supply voltage. The RF front-end circuits show a voltage gain of 30 dB,an average single side-band noise figure of 4 dB,an IIP2 of 40 dBm,and an IIP3 of-3 dBm for the entire band from 48 MHz to 862 MHz.
CMOS Digital TV Linear Low noise RF front-end Tuners Wideband
Ilku Nam Donggu Im Young-Wook Lim Xuemin Xu Hyung Su Lee Shin-Hyouk Seo
School of Electrical Engineering,Pusan National University,Busan 609-735,Korea System IC Business Team,LG Electronics,Seoul 137-724,Korea Central R&D Center,LG Industrial Systems Co.,Gyeonggi 431-848,Korea
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
451-454
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）