Title :
A fully integrated 2.4-GHz LC-VCO frequency synthesizer with 3-ps jitter in 0.18-μm standard digital CMOS copper technology
Author :
Da Dalt, Nicola ; Derksen, Sven ; Greco, Patrizia ; Sandner, Christoph ; Schmid, Harald ; Strohmayer, Klaus
Author_Institution :
Dev. Center Villach, Infineon Technol. Austria, Villach, Austria
fDate :
7/1/2002 12:00:00 AM
Abstract :
In this paper, we present a fully integrated frequency synthesizer, using an LC voltage-controlled oscillator (LC-VCO) as the core oscillator. The synthesizer is designed to provide various output clock signals for a transceiver chip. Sampling clocks for on-chip analog-to-digital and digital-to-analog conversion modules are also generated, where low jitter is required. The synthesizer also includes an additional digital phase-locked loop and programmable fractional dividers. We present the general concept, special issues related to low jitter, and test chip results. The synthesizer achieves 3-ps rms long-term jitter on a 200-MHz output with 20-mW power and an area of 0.7 mm2
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; analogue-digital conversion; digital phase locked loops; digital-analogue conversion; frequency synthesizers; integrated circuit noise; phase noise; timing jitter; transceivers; voltage-controlled oscillators; 2.4 GHz; LC-VCO frequency synthesizer; analog-to-digital conversion; digital phase-locked loop; digital-to-analog conversion; fractional divider; fully integrated frequency synthesizer; low jitter; on-chip conversion modules; phase noise; programmable fractional dividers; sampling clocks; standard digital CMOS copper technology; transceiver chip; Clocks; Digital-analog conversion; Frequency synthesizers; Jitter; Phase locked loops; Sampling methods; Signal design; Testing; Transceivers; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2002.1015697
