Precision Illumination Signal Modulation (PrISM) is a Cypress technology that uses stochastic signal density modulation, which can be used for controlling the intensity of LEDs in lighting applications. This document describes the key characteristics of PrISM and its implementation using PSoC user modules. The application note also explains the challenges faced in implementing high resolution PrISM and recommends solutions to address these issues. The attached code examples explain the implementation of 8-bit, 16-bit, and variable resolution PrISM using SSDM user modules in PowerPSoC devices.
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