Hi,
I'm working on a product that requires 480p 30fps compressed with H.264, with the lowest possible power consumption.
I've looked at the DM365 and DM368 and played around with the power consumption excels, but it is difficult to reach optimal low powers.
The required scenario is as follows:
1. Interface to a sensor that will provide 480p frames at 30fps.
2. Microphone input is also required as an input into the encoder (mono).
3. No need to do anything else except encode with H.264 (no face detection, no resize, nothing).
4. No backend required (so OSD off, analog output off).
5. EMIF working since as I understand it, it must work on Linux, which requires an externally connected DDR RAM.
6. No Ethernet, no USB, no McBSP, no SPI or SDI.
7. Need to store encoded footage on an SD card (so SD interface is on when write operations are required).
As I understand it, in this scenario, most of the work is performed in the VPFE, so the ARM processor is mostly IDLE, which means that if it can get its own PLL (and connect everything else to the second PLL), its' frequency can be lowered significantly.
Is it possible to get an estimated power consumption for this scenario?
Thank you very much,
Oren.
