微电子学
微電子學
미전자학
MICROELECTRONICS
2009年
6期
790-792
,共3页
蔡志民%陈莹梅%李智群%章丽%李伟
蔡誌民%陳瑩梅%李智群%章麗%李偉
채지민%진형매%리지군%장려%리위
压控振荡器%CMOS工艺%环形振荡器%相位噪声
壓控振盪器%CMOS工藝%環形振盪器%相位譟聲
압공진탕기%CMOS공예%배형진탕기%상위조성
Voltage controlled oscillator(VCO)%CMOS technology%Ring oscillator%Phase noise
设计了一种应用于GPS射频接收芯片的低功耗环形压控振荡器.环路由5级差分结构的放大器构成.芯片采用TSMC 0.18 μm CMOS工艺,核心电路面积0.25 mm×0.05 mm.测试结果表明,采用1.75 V电源电压供电时,电路的功耗约为9.2 mW,振荡器中心工作频率为62 MHz,相位噪声为-89.39 dBc/Hz @ 1 MHz,该VCO可应用于锁相环和频率合成器中.
設計瞭一種應用于GPS射頻接收芯片的低功耗環形壓控振盪器.環路由5級差分結構的放大器構成.芯片採用TSMC 0.18 μm CMOS工藝,覈心電路麵積0.25 mm×0.05 mm.測試結果錶明,採用1.75 V電源電壓供電時,電路的功耗約為9.2 mW,振盪器中心工作頻率為62 MHz,相位譟聲為-89.39 dBc/Hz @ 1 MHz,該VCO可應用于鎖相環和頻率閤成器中.
설계료일충응용우GPS사빈접수심편적저공모배형압공진탕기.배로유5급차분결구적방대기구성.심편채용TSMC 0.18 μm CMOS공예,핵심전로면적0.25 mm×0.05 mm.측시결과표명,채용1.75 V전원전압공전시,전로적공모약위9.2 mW,진탕기중심공작빈솔위62 MHz,상위조성위-89.39 dBc/Hz @ 1 MHz,해VCO가응용우쇄상배화빈솔합성기중.
A low power ring voltage controlled oscillator (VCO) for RF receiver in GPS was designed, which consisted of five stages of amplifier with differential structure.Implemented in TSMC's 0.18 μm CMOS technology.the VCO occupies a chip area of 0.25 mm×0.05 mm.Measurement results showed that the circuit had a central frequency of 62 MHz and a phase noise of -89.39 dBc/Hz @ 1 MHz.And it dissipates about 9.2 mW of power from a 1.75 V supply voltage.The VCO is applicable for PLL and frequency synthesis.
