期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
A CMOS wideband front-end chip using direct RF sampling mixer with embedded discrete-time filtering
1
作者 许江涛 carlos e.saavedra 陈贵灿 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2011年第8期111-117,共7页
A CMOS wideband front-end IC is demonstrated in this paper.It consists of a low noise transconductance amplifier(LNTA) and a direct RF sampling mixer(DSM) with embedded programmable discrete-time filtering.The LNT... A CMOS wideband front-end IC is demonstrated in this paper.It consists of a low noise transconductance amplifier(LNTA) and a direct RF sampling mixer(DSM) with embedded programmable discrete-time filtering.The LNTA has the features of 0.5-6 GHz wideband,wideband input matching and low noise.The embedded filter following the DSM operates in discrete-time charge domain,filtering the aliasing signals and interferences while controlling the IF bandwidth according to the clock frequency.The measured NF of the front-end was below 7 dB throughout the whole band from 0.5 to 6 GHz.It shows a conversion gain of 12.6 dB and IP_(1dB) of-7.5 dBm at 2.4 GHz.It occupies a chip area of 0.23 mm^2 and consumes 14 mA DC current. 展开更多
关键词 wideband front-end LNTA DSM discrete time FIR filtering IIR windowed integration
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部