Wide capture range PLL with LC-VCO

Author

Zou, Xuecheng ; Jiang, Xiang ; Xiao, Dingzhong ; Liu, Sanqing

Author_Institution

Dept. of Electron. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

2

fYear

2005

Firstpage

953

Abstract

A wide capture range PLL with low phase noise is proposed and analyzed. The PLL incorporates a LC voltage-controlled oscillator (VCO) to get low phase noise while the divider is controlled by low pass filter (LPF) voltage to achieve wide capture range. The proposed PLL is designed based on the SMIC 0.18-μm 1P5M CMOS process with a 2.5 V supply voltage. HSPICE simulation shows that the output frequency of proposed PLL alternates from 0.3 GHz to 1.4 GHz, and the phase noise is below-120 dB at a 300 KHz offset from VCO center frequency.

Keywords

CMOS integrated circuits; SPICE; low-pass filters; phase locked loops; voltage-controlled oscillators; 0.18 micron; 0.3 to 1.4 GHz; 2.5 V; 300 KHz; HSPICE simulation; LC-VCO; LPF; SMIC 1P5M CMOS process; low pass filter; phase locked loop; voltage-controlled oscillator; wide capture range PLL; Clocks; Frequency; Hysteresis; Inductors; Phase locked loops; Phase noise; Telecommunication control; Tuning; Voltage control; Voltage-controlled oscillators; Analog circuits; PLL; VCO; phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on

Print_ISBN

0-7803-9128-4

Type

conf

DOI

10.1109/MAPE.2005.1618078

Filename

1618078