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Low phase noise buffer‐reused BiCMOS oscillator
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-04-14 , DOI: 10.1002/mop.32867
Ho‐Chang Lee, Sheng‐Lyang Jang, Yen‐Hsun Chen

This letter presents a lower phase noise voltage‐controlled oscillator (VCO) uses two differential amplifiers in cross‐coupled feedback and is named as a buffer‐reused VCO in the TSMC standard 0.18 μm SiGe BiCMOS processes. The die area is 1.1 × 1.2 mm2. The first amplifier uses HBT stacking on nMOSFET and the second amplifier uses nMOS amplifier. Its power consumption of 2.65 mW with output buffer current, the phase noise is −128.81 dBc/Hz at 1 MHz offset frequency from the center frequency 4.19 GHz. The figure of merit (FOM) is −194.08 dBc/Hz.

中文翻译:

低相位噪声缓冲器重复使用的BiCMOS振荡器

这封信介绍了一个低相位噪声压控振荡器(VCO),它在交叉耦合反馈中使用了两个差分放大器,在TSMC标准的0.18μmSiGe BiCMOS工艺中被称为缓冲器重用的VCO。模具面积为1.1×1.2mm 2。第一个放大器使用nMOSFET上的HBT堆叠,第二个放大器使用nMOS放大器。在具有输出缓冲电流的情况下,其功耗为2.65 mW,在从中心频率4.19 GHz偏移1 MHz时,相位噪声为−128.81 dBc / Hz。品质因数(FOM)为−194.08 dBc / Hz。
更新日期:2021-05-03
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