⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种采用宽带电流前置放大器的可调谐跨阻放大器（TIA），在0.18µm CMOS工艺中实现了76dBΩ的增益和1.7GHz带宽，旨在解决高频参考振荡器应用中石英晶振的替代问题。该设计通过可调谐技术优化了多GHz频率下的性能，适用于硅微机械振荡器接口。
Georgia Institute of Technology, Atlanta, GA Oklahoma State University, Tulsa, OK 2 The frequency reference oscillator is a pivotal block in modern radio transceivers. Currently, modern transceivers rely on off-chip low frequency (<100MHz) quartz crystal reference oscillators [1]. Silicon micromechanical oscillators are suitable alternative to quartz crystal oscillators due to their small form-factor, higher frequency, and integration potential with ICs [2]-[4]. In multi-gigahertz applications, large up-conversion ratio of synthesizers limits the performance of RF front-end. In addition, OFDM-based 3G/4G standards with stringent error vector magnitude (EVM) specification [5] demand a low phasenoise floor that for low frequency resonating tanks is only possible by reducing the 3-dB bandwidth (BW) of the low pass filter in the PLL. The small BW increases the size of filter and hence, complicates the integration of the synthesizer in
Hossein Miri Lavasani1, Wanling Pan1, Brandon Harrington2, Reza Abdolvand2, Farrokh Ayazi1