摘要
提出了用射频CML技术设计的2/3分频单元。基于2/3分频单元,使用0.35μm SiGeBiCMOS工艺,实现了射频可编程N分频器。验证结果表明,电路可在GHz频率下正常工作,具有相噪低、功耗小等特点。在3GHz射频输入信号频率下,频偏100kHz的输出相位噪声为-143dBc/Hz。电路消耗的总电流仅为4mA(3V单电源电压),功耗仅为12mW。
A divided-by-2/3 frequency divider was designed using RF CML technology.Based on the circuit,an RF programmable N frequency divider was implemented using 0.35 μm SiGe BiCMOS process.Simulation results showed that this circuit,which operated properly at GHz frequency,had an output phase noise of-143 dBc/Hz at 100 kHz kHz offset for 3 GHz RF input signal,and it only consumed a total current of 4 mA(3 V single power supply) and dissipated only 12 mW of power.
出处
《微电子学》
CAS
CSCD
北大核心
2012年第1期84-86,共3页
Microelectronics