THE DUAL-BAND VOLTAGE CONTROLLED OSCILLATOR USING BIAS SWITCHING AND MULTIPLEXING OF OUTPUT BUFFER
摘要
Disclosed is a dual-band voltage-controlled oscillator using bias switching and output-buffer multiplexing. The dual-band voltage-controlled oscillator includes a power supply unit for supplying a source voltage; plural voltage-controlled oscillation units for outputting different oscillation frequencies according to controls of a certain tuning voltage; plural bias units for generating driving voltages for driving the voltage-controlled oscillation units and supplying the driving voltages to the voltage-controlled oscillation units; and plural buffers for selectively outputting oscillation frequencies of the plural voltage-controlled oscillation units. The present invention implements the dual-band voltage-controlled oscillator through bias switching and output-buffer multiplexing, which brings an advantage of elimination of interference between output frequencies to enhance phase noise characteristics.
申请公布号
KR20060087783(A)
申请公布日期
2006.08.03
申请号
KR20050008613
申请日期
2005.01.31
申请人
SAMSUNG ELECTRONICS CO., LTD.
发明人
LEE, HEUNG BAE;LEE, SEONG SOO;LIM, JIN YUP;CHOI, JUNG HO;JEON, SANG YOON