A New PLL Frequency Synthesis Structure

Title Page Submicron Cmos Components for Pll- Based Frequency Synthesis

Digital PLL Synthesis

Digital tuning systems are fast replacing the conventional mechanical systems in AM/FM and television receivers. The desirability of the digital approach is mainly due to the following features: Y Precise tuning of station frequencies Y Exact digital frequency display Y Keyboard entry of desired frequency Y Virtually unlimited station memory Y Up/down scanning through the band Y Station ‘‘searc...

A New Approach to Frequency Synthesis

A new approach to frequency synthesis permits the achievement of excellent spectral purity, high agility, very fine resolution, low power consumption and low cost. The principle of the proposed Phase Digital Synthesizer (PDS) is that the control signal of the PLL is formed by a multi frequency-phase comparator with phase splitting of the reference and VCO signals into a large group of signals w...

Modeling Jitter in PLL-based Frequency Synthesizers

Version 4, 1 April 2003 A methodology is presented for modeling the jitter in a Phase-Locked Loop (PLL) that is both accurate and efficient. The methodology begins by characterizing the noise behavior of the blocks that make up the PLL using transistor-level simulation. For each block, the jitter is extracted and provided as a parameter to behavioral models for inclusion in a high-level simulat...

Switchable PLL Frequency Synthesizer andHot Carrier Effects

In this paper, a new strategy of switchable CMOS phase-locked loop frequency synthesizer is proposed to increase its tuning range. The switchable PLL which integrates two phase-locked loops with different tuning frequencies are designed and fabricated in 0.5 μm n-well CMOS process. Cadence/Spectre simulations show that the frequency range of the switchable phased-locked loop is between 320 MHz ...