2.82～4.04GHz CMOS差分调谐LC VCO的设计

The Design of a 2.82～4.04 GHz CMOS Differential Tuned LC VCO

通过对SMIC 0.13μm CMOS工艺的反型MOS电容的特性研究与测试验证,实现了一个2.82~4.04GHz的低调谐增益变化、低子带频率间隔变化、差分调谐宽带电感电容压控振荡器(LC VCO)。测试结果显示,频率覆盖范围为2.82~4.04 GHz,子带间距变化从12~6.9 MHz,中心差分调谐增益从23~17 MHz/V,相位噪声在频偏1 MHz处为-113^-118 dBc/Hz。

Based on the comprehensive study and verification of inversion MOS capacitor,a 2.82～4.04 GHz differential tuned LC voltage controlled oscillator（VCO） with low Kvco and small sub-bands frequency step variation as well as wide band has been implemented in SMIC 0.13 μm CMOS technology.The measurement results show that a tuning range of 2.82～4.04 GHz,sub-bands frequency step variation of 12～6.9 MHz,center differential Kvco of 23～17 MHz/V and phase noise of-113～-118 dBc/Hz have been achieved.