Dear TI,
Thank you for releasing the power calculator. That has been very helpful. I was looking for some theoretical help and wanted to run past a design scenario for you. I am hoping to use the AMxxxx class of devices on a product. The product application is a power sensitive application where I need to have a low-power WiFi node and a small lcd run off of the AMxxxx device. I ran the power calculator for the 275 MHz mode with 30% processor utilization and my perhiperals utilization spanned across the EDMA, LCDC, and the SPI BUS. With that I was able to achieve about 100 mW. That is almost an order of magnitude different than the static image display power reference example shown running at 500MHz which achieves 500 mW. Are there any specific limitations to running the LCD off of the 275 MHz frequency that would not allow me to achieve the 100 mW that I am referencing.
I realize that this is not an easy question but would appreciate any insight. I would like to use a Sitara device in my application due to the graphics feature set that it allows but I am struggling to make that tradeoff vs a microcontroller solution.
Sincerely,
Jason