在GaAs HBT工艺中实现了一种乘/分频率范围为0.25-20 GHz的高带宽压控振荡器(VCO)

Proceedings of Eighth International Application Specific Integrated Circuits Conference Pub Date : 1995-09-18 DOI:10.1109/ASIC.1995.580679

P. Campbell, H. Greub, A. Garg, S. Steidl, C. Maier, S. Carlough, J. McDonald

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引用次数: 1

摘要

利用50 GHz的GaAs-AlGaAs hbt，研制了一种高速压控振荡器(VCO)，可产生0.25-20 GHz的差分信号。设计过程的重点是通过利用差分电路中存在的高度对称性来产生具有高度匹配寄生电容的布局。使用VCO的示例详细描述了系统设计和单元布局技术。还讨论了压控振荡器的工作以及设计权衡。

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A high-bandwidth voltage controlled oscillator (VCO) with a frequency-multiplied/divided range of 0.25-20 GHz implemented in a GaAs HBT process

A high speed voltage-controlled oscillator (VCO) bas been developed using 50 GHz GaAs-AlGaAs HBTs which can generate differential signals in the range of 0.25-20 GHz. The design process was focused on producing a layout with highly-matched parasitic capacitance by exploiting the high degree of symmetry present in differential circuits. The system design and cell layout techniques are described in detail using examples from the VCO. The operation of the VCO is also discussed along with design tradeoffs.

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Proceedings of Eighth International Application Specific Integrated Circuits Conference

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