Title :
A CMOS VLSI delay oriented waveform converter dedicated to the synthesizer of an UMTS transceiver
Author :
Spataro, Anne ; Deval, Yann ; Bégueret, Jean-Baptiste ; Fouillat, Pascal ; Belot, Didier
Author_Institution :
Lab. IXL, Bordeaux I Univ., Talence, France
Abstract :
In this paper we present a waveform converter implemented on a 0.25 μm CMOS technology using a dedicated design methodology (delay oriented design). The circuit converts a square wave signal in both in-phase and quadrature-phase sinusoidal differential outputs. It also multiplies the frequency by seven. The output frequency range of this converter extends from 1.05 GHz up to 2.17 GHz. This converter is dedicated for the design of a third generation mobile phone synthesizer using a double loop architecture. For an output frequency of 2 GHz, the measured phase noise at 10 kHz offset from the carrier is -97 dBc/Hz. The circuit consumes 50 mW from a 2.5 V supply
Keywords :
CMOS analogue integrated circuits; MMIC frequency convertors; UHF integrated circuits; VLSI; code division multiple access; frequency synthesizers; phase locked loops; phase noise; transceivers; 0.25 micron; 1.05 to 2.17 GHz; 2.5 V; 50 mW; CMOS; UMTS transceiver; VLSI; delay oriented waveform converter; double loop architecture; in-phase sinusoidal differential outputs; output frequency range; phase noise; quadrature-phase sinusoidal differential outputs; square wave signal; third generation mobile phone synthesizer; CMOS technology; Circuits; Design methodology; Frequency conversion; Frequency measurement; Mobile handsets; Noise measurement; Propagation delay; Synthesizers; Very large scale integration;
Conference_Titel :
Custom Integrated Circuits, 2001, IEEE Conference on.
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-6591-7
DOI :
10.1109/CICC.2001.929759
