Title :
A VLSI CMOS delay oriented waveform converter for polyphase frequency synthesizer
Author :
Spataro, Anne ; Deval, Yann ; Bégueret, Jean-Baptiste ; Fouillat, Pascal ; Belot, Didier
Author_Institution :
LXL Microelectron. Lab., Bordeaux I Univ., France
fDate :
3/1/2002 12:00:00 AM
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 integrated circuits; VLSI; convertors; delay lock loops; frequency synthesizers; integrated circuit design; integrated circuit noise; mobile radio; phase noise; 0.25 micron; 1.05 to 2.17 GHz; 2.5 V; 50 mW; VLSI CMOS waveform converter; delay oriented design; double-loop architecture; phase noise; polyphase frequency synthesizer; third-generation mobile phone; CMOS technology; Circuits; Design methodology; Frequency conversion; Frequency measurement; Mobile handsets; Noise measurement; Propagation delay; Synthesizers; Very large scale integration;
Journal_Title :
Solid-State Circuits, IEEE Journal of
