Power consumption number of DM365IPNC

Arrow Vancouver said:

Hi, anybody has the power budget of DM365IPNC IP camera ref design running 720p30 H.264 compression?

You may want to ask the particular IPNC manufacturer for power figures for their particular reference design. What I can provide is the approximate power consumption of the DM365 itself when operating in this mode, there is a power application note here that shows about 759mW for a 720p30 encode with the ARM running at 300MHz. Of course the full IPNC would take a bit more power than this since you have all the peripheral devices (DDR, sensor, PHY, power supply efficiency, etc.), though I suspect the DM365 is the largest contributor to the power budget.

Hi.   I measured the power of a single DM365 IP net cam reference design on the bench.  Using the 12V DC power input I measured 244.7 mA peak current consumption while encoding a single 720P30 H.264 stream.  This would give a SYSTEM power consumption of 2.94 W.

Please note that is is the measured power consumption of the entire camera system. It is also only a single data point.  This is not likely the maximum power consumption possible in this configuration but should give a good indication of expect power requirements for this design.  As Bernie mentioned this power includes not only the DM365 but also the DDR, ENET PHY, and losses in the power regulators.

This camera was running at 297 MHz ARM, 270 MHz DDR which is actually overkill for encoding a single 720P30 stream.  If that is your use case then you could decrease the DM365 frequencies and reduce power.

-phil