Title :
A 360° extended range phase detector for type-I PLLs
Author :
Charles, Cameron T. ; Allstot, David J.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
This paper presents control circuitry for extending the range of a tri-state phase-frequency detector in a type-I charge-pump phase-locked loop. The extended range phase detector allows the entire range or the voltage controlled oscillator to be used, independent of loop filter gain and other design variables. A phase-locked loop containing the proposed control circuitry has been simulated by SPECTRE with BSIM3v3.2 models, and the expected operation has been confirmed. The phase-locked loop has been fabricated in the IBM 7RF 0.18 μm CMOS process.
Keywords :
CMOS integrated circuits; phase locked loops; phase noise; voltage-controlled oscillators; 0.18 micron; BSIM3v3.2 models; IBM 7RF CMOS process; SPECTRE; charge-pump phase-locked loop; control circuitry; extended range phase detector; tri-state phase-frequency detector; type-I PLL; voltage controlled oscillator; Bandwidth; Charge pumps; Circuit optimization; Circuit simulation; Costs; Phase detection; Phase frequency detector; Phase locked loops; Voltage-controlled oscillators; Wireless communication;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465871
