Solutions Search - LTC6945 - Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer

Phase Noise of Integer-N and Fractional-N PLL Synthesizers

Kevin B. Scott - Senior Strategic Marketing Engineer
Michel Azarian - Product Marketing Engineer Feb 10th 2015
Phase Noise of Integer-N and Fractional-N PLL Synthesizers Low phase noise is essential when generating high frequency, high linearity signal sources. Phase noise is a measure of the undesirable change or variation in phase of a signal. It is measured in the frequency domain and equates to jitter in the time domain. When using ...

AN143 - A Simple Method to Accurately Predict PLL Reference Spur Levels Due to Leakage Current

Will Ezell - Design Engineering Section Lead
Michel Azarian - Product Marketing Engineer Jan 3rd 2014
For More Information, Download the Complete Application Note "AN143- A Simple Method to Accurately Predict PLL Reference Spur Levels Due to Leakage Current" Presented is a simple model that can be used to accurately predict the level of reference spurs due to charge pump and/or op amp leakage current in a PLL system. Knowing ...

DC1649A-A - LTC6945 Demo | Ultralow Noise and Spurious 6GHz Integer-N Synthesizer, VCO=902-928Hz, (Req DC590)

Feb 21st 2012
DC1649A-A - Demo Board for:LTC6945 - Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer ...

Ultralow Noise & Spurious 350MHz to 6GHz Integer-N PLL/Synthesizer Suppresses System Noise

Dec 19th 2011
MILPITAS, CA – December 19, 2011 –  Linear Technology announces the LTC6945, a high performance 6GHz integer-N frequency synthesizer with outstanding -226dBc/Hz normalized closed-loop in-band phase noise, excellent -274dBc/Hz normalized in-band 1/f noise, a wideband phase noise floor of -157dBc/Hz and best-in-class ...

LTC6945 Wideband Point-to-Point Radio Local Oscillator

Dec 13th 2011
The LTC6945 is a high performance, low noise, 6GHz phase locked loop (PLL), including a reference divider, phase frequency detector (PFD) with phase-lock indicator, charge pump, integer feedback divider and VCO output divider. The part features a buffered, programmable VCO output divider with a range of 1 through 6. The differential, ...

Low Phase Noise Frequency Synthesizers for RF Applications

Doug LaPorte - Design Manager Sep 19th 2011
In modern RF communication systems, signal integrity is of prime importance. To meet the system requirements, amplifiers, mixers and modulators must have a low noise figure and low distortion products. Additionally, as system designers work to squeeze increasingly more data into the available bandwidth, low phase noise signal ...