摘要
为进一步实现原子钟的低功耗、微型化,设计了一种用于85Rb原子钟的专用射频模块芯片。该芯片采用了交叉耦合差分结构,利用串联的平面集成螺旋电感达到3 GHz的输出频率,同时采用了累积型MOS变容管,实现控制电压对于输出频率的单调调节。最终对设计芯片进行了仿真测试,并完成了流片与封装,基本达到了设计指标。
A dedicated RF module for85Rb atomic clock chip is designed in order to implement a low power and miniature atomic clocks. The structure of85Rb atomic clock chip dedicated RF modules is described. The chip employs a cross-coupled differential structure, and utilizes planar integrated spiral inductor in series to ensure the output frequency can reach 3GHz. The chip uses the accumulation mode MOS varactors, and realizes the monotone adjustment on the output frequency by controlling the voltage. The simulation test is performed on the chip, then the flow sheet and packing are completed. The results basically reach the design specifications.
出处
《太赫兹科学与电子信息学报》
2015年第6期921-923,936,共4页
Journal of Terahertz Science and Electronic Information Technology
关键词
射频模块
可变电容
螺旋电感
芯片设计
RF module
variable capacitor
spiral inductors
chip design