一种用于Bluetooth发接器的倍频式VCO  

Design of Frequency Doubling VCO for Bluetooth Transceiver

作　　者：苏彦锋[1] 衣晓峰[1] 朱臻[1] 洪志良[1] 

机构地区：[1]复旦大学集成电路设计实验室,上海200433

出　　处：《固体电子学研究与进展》2004年第3期296-301,共6页Research & Progress of SSE

摘　　要：介绍了一种适用于 Bluetooth发接器的 ,可以单片集成的倍频式压控振荡器 ( VCO)。这种 VCO由两部分组成 ,主 VCO的振荡频率是所需本振频率的一半 ,然后采用“注入锁频”原理对主 VCO的振荡频率进行倍频以产生本振信号。主 VCO和倍频电路都使用了片上集成螺旋电感 ,调谐用的变容元件使用 PMOS晶体管实现。经过版图设计和后仿真 ,在 TSMC0 .35 μm数字 COMS工艺 ,3.3V电源电压下 ,该 VCO在 2 .4GHz中心频率附近可以达到的相位噪声指标为 -1 2 5 d Bc/Hz( 60 0 k Hz) ,在输出摆幅为 60 0 m Vp- p时 ,功耗为 2 2 m W。A voltage controlled oscillator (VCO) is introduced to use in a fully integrated Bluetooth transceiver. The VCO includes tow parts. The central frequency of the main VCO is half of the required local oscillating frequency. Its output frequency is doubled using the principle of injection locking to generate the required local oscillating frequency. In chip spiral inductors are incorporated for single chip integration. The tuning varactor is implemented with PMOS transistor. After layout design and post simulation with TSMC 0.35 μm standard digital CMOS technology and 3.3 V power supply, phase noise is -125 dBc/Hz(600 kHz) in the vicinity of 2.4 GHz. When the output voltage swing is 600 mV_(p-p), the power is 22 mW.

关 键 词：蓝牙发接器 压控振荡器 倍频电路 射频集成电路 

分 类 号：TN74[电子电信—电路与系统]