74.9.2 System Power Consumption in Applicative Use Cases

Table 74-75 provides the processor power consumption in the following conditions:
  • fCPU_CLK = 800 MHz
  • fMCK1 = 200 MHz
  • fMCK2 = 533 MHz
  • fMCK3 = 266 MHz
  • fMCK4 = 400 MHz
  • I & D caches are enabled.
  • The external SDRAM memory is DDR3L.
  • Use cases are run on Linux®.
  • Current consumptions are measured according to the figure below. Note that the external component current consumptions are not counted.
  • The ambient temperature is 25°C.
Table 74-74. Use Case Definition
Use Case Description
1 Audio MP3 decoding and playback on I2S; MP3 file on USB mass storage
2 SAMA7G5 running as iPerf server
3 Running Bonnie++ on USB mass storage
4 SAMA7G5 downloads a file from GMAC0 and copies this file to USB mass storage
5 Streaming camera on Ethernet (image format RAW8, 1080p @ 30fps)
Figure 74-51. Current Measurement for Applicative Use Cases
Table 74-75. Power Consumption in Applicative Use Cases
Use Case Power Consumption (mW)

VDDCORE

1.15V

VDDCPU

1.15V

VDDIODDR

1.35V

VDDIN33

VDDUTMII

3.3V

Total
1 283 59 53 127 522
2 318 149 111 157 735
3 310 175 66 123 674
4 315 150 98 121 684
5 320 127 82 138 667