Rank: 452 based on 264 downloads (last 30 days) and 14 files submitted
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Rick McConnell

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Senior RF Engineer

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Files Posted by Rick View all
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30 Jan 2013 Basic MASH 111 Sigma Delta Simulation A fairly hardware exact simulation of a MASH 111 Sigma Delta Modulator Author: Rick McConnell simulation, pll, sdm, synthesizer 32 0
30 Jan 2013 Multi Feedback Sigma Delta Modulator A fairly hardware exact simulation of a multi-feedback SDM Author: Rick McConnell simulation, pll, synthesizer 31 0
11 Apr 2012 Limiting Amplifier using IP3 and IP2 and tanh We build a signal limiting function that is specified by IP2 and IP3. Author: Rick McConnell communications, signal processing, simulation, simulink, amplifier, limiting 21 0
10 Apr 2012 Screenshot limiting amplifier using IP3 and tanh Generate a function to represent limiting, using IP3 to specify the operation Author: Rick McConnell signal processing, simulation, simulink, limiting, amplifier 20 0
21 Jun 2011 Generate FM noise sidebands on a carrier using randn fn Generate and plot noise sidebands using randn modulation of a carrier. Author: Rick McConnell communications, signal processing, simulation, pll, vco, synthesizer 19 1
Comments and Ratings on Rick's Files View all
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13 Dec 2012 SNR for Coherent and Non-Coherent Filtering Plot coherent SNR improvement versus non-Coherent for different amounts of sample averaging Author: Rick McConnell oktaviansyah, fredy

This is very useful for my learning.

22 Jun 2011 Generate FM noise sidebands on a carrier using randn fn Generate and plot noise sidebands using randn modulation of a carrier. Author: Rick McConnell Martin

I want to take this a bit farther. We have designed and tested a transceiver with dual DDS chips and a very linear summer for VCO FM/FM modulation. Now I need to make it all digital. The secondary sine waveform comes from the DSP but the primary triangle is embedded in the VCO chip. How do I combine them properly in the VCO for FM/FM modulation? I am confused on how to execute this plan.
Thanks.
Marty

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