Title :
A 25MHz all-CMOS reference clock generator for XO-replacement in serial wire interfaces
Author :
McCorquodale, M.S. ; Pernia, S.M. ; Kubba, S. ; Carichner, G. ; Day, J. D O ; Marsman, E. ; Kuhn, J. ; Brown, R.B.
Author_Institution :
Design Center, Mobius Microsyst., Inc., Detroit, MI
Abstract :
A 25 MHz all-CMOS clock generator is demonstrated where measured performance makes it suitable for direct replacement of the reference crystal oscillator (XO) for serial wire interfaces. Fabricated in a 0.25 mum 1P5M logic CMOS process, and with no external components, the developed clock generator dissipates 59.4 mW while exhibiting plusmn152 ppm frequency error over process, plusmn10% variation in the power supply voltage and from -5-75degC. Nominal period jitter and power-on start-up latency are 3.93 psrms and 268 mus respectively.
Keywords :
CMOS logic circuits; clocks; crystal oscillators; 1P5M logic CMOS process; XO-replacement; all-CMOS reference clock generator; frequency 25 MHz; power 59.4 mW; reference crystal oscillator; serial wire interfaces; size 0.25 mum; temperature -5 C to 75 C; time 268 mus; CMOS logic circuits; CMOS process; Clocks; Frequency; Jitter; Oscillators; Power generation; Power supplies; Voltage; Wire;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4542048
