G. Chien et Pr. Gray, A 900-MHz local oscillator using a DLL-based frequency multiplier technique for PCS applications, IEEE J SOLI, 35(12), 2000, pp. 1996-1999
A monolithic CMOS local oscillator utilizing a delay-locked loop (DLL)-base
d frequency multiplier technique to synthesize a 900-MHz carrier frequency
with a low close-in phase noise is described. The prototype, implemented in
a double-poly five-metal 0.35-mum CMOS technology, achieves a -123 and -12
7 dBc/Hz phase noise at 60 and 330 kHz offset frequencies, respectively, wh
ile dissipating 130 mW from a 3.3-V supply. This prototype satisfies the sp
ecification of the IS-137 AMPS/TDMA dual-mode standard.