A balanced 1.5 GHz voltage controlled oscillator with an integrated LC resonator
A balanced 1.5 GHz voltage controlled oscillator with an integrated LC resonator
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具有集成 LC 谐振器的平衡 1.5 GHz 压控振荡器
DOI：
10.1109/isscc.1997.585454
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Peter Schvanz
中科院分区：
文献类型：
--
作者：
M. Copeland;Peter Schvanz
介绍了一种用于低功耗数字无线电手机的单片压控振荡器（VCO）。该电路采用0.8/spl μ/m11 GHz f/sub T/ BiCMOS工艺制作。该VCO基于平衡配置的共集电极Colpitts电路，提供差分输出，以便与预分频器和双平衡混频器输入直接兼容。该电路采用集成LC谐振器组成的共面电感，多晶硅电容，和片上变容二极管。全集成电感在2GHz时的空载Q值约为5。
A monolithic voltage-controlled oscillator (VCO) is presented for low-power digital radio handsets. This circuit is fabricated in a production 0.8/spl mu/m 11GHz f/sub T/ BiCMOS process. The VCO is based on the common-collector Colpitts circuit in a balanced configuration to provide differential output for direct compatibility with prescaler and double-balanced mixer inputs. The circuit utilizes an integrated LC resonator comprised of coplanar inductors, polysilicon capacitors, and on-chip varactors. The fully-integrated inductors have an unloaded Q of approximately 5 at 2GHz.