Tag Archives: matlab

Non-Radix-2 FFT in Cadence/Ocean/Skill/Spectre | Using Cadence IPC to talk to Matlab (or anything else)

By Poojan Wagh | Published: January 19, 2009
Introduction I had been working on a pulse-width-modulation (PWM) design. It was a pseudo-digital implementation, in that the output was clocked by a high-speed clock. The actual switching rate was much lower than this clock. I wanted to simulate this design in Cadence/Spectre by running a transient and then taking an FFT. However, I ran into a [...]
Posted in Analog Professional, Digital Professional | Also tagged , , , , | 4 Comments

Slope/Integrating ADC in Matlab Simulink

By Poojan Wagh | Published: September 3, 2008
Response to: ADC in Matlab simulink: The first time I did this I misinterpreted the question, posting a sigma-delta example rather than an integrating (slope) ADC. Anyway, here’s a slope ADC starting point: simulinkslopeadc
Posted in Analog Professional | Also tagged , , , , , | 2 Comments

Example Simulink model & scripts for continuous-time sigma-delta ADC

By Poojan Wagh | Published: September 2, 2008
I've put together a 2nd order continuous sigma-delta Simulink model as a starting point. This is the multi-port feedback configuration (feeds back into input of 1st and 2nd integrators).
Posted in Analog Professional | Also tagged , , , , , , | 19 Comments