A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers

LC-active VCO for CMOS RF transceivers

A novel fully integrated CMOS LC tank VCO is presented. The LC tanks are implemented by exploiting the active circuit ‘boot-strapped inductor’ (BSI), which behaves like a high-quality factor inductor. Particularly, the LC tanks have been implemented by introducing a new version of the CMOS BSI circuit, which provides better versatility and design reliability. In order to verify the effectivenes...

A wideband digital frequency synthesizer

I I I I / With the rapid advance in CMOS technology. the trend.of the VLSI then towards system-on-chip (SOC) where design methodology. cost. and turnaround time are major issues. Concepts of intellectual property (IP) are then proposed to fit for SOC designs. Based on a DFS controller IP [4]. a wideband digital frequency synthesizer (DFS) is proposed to fit in with the wireless LAN applications...

Implementation of a Power Optimized Lc Vco & Mixer Co-design

Diophantine Frequency Synthesizer with New Coincidence Mixer

Frequency synthesizers are an essential part of any modern transceiver system. They generate clock and oscillator signals needed for up and down conversion. Today’s communication standards demand both high frequency accuracy and fast frequency settling. The fine frequency resolution, low spurious signals, accuracy and stability are most important for these devices. In this paper, the new freque...

A Study of Two Wideband Cmos Lc-vco Structures

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