User's Manual

Advance Information – Subject to Change
Provided Under NDA Power Consumption
30 Power Consumption NVIDIA Proprietary and Confidential
B.2 PM2 Power Consumption
In this section, the following applies to all values:
• Music was stored in WMA format on a 8-Gb (1-GB) on-board NAND device and played
using Creative SBS16-powered PC speakers.
• Some variance in measured current occurs due to the level of battery charge at the
time of measurement. The more deeply discharged the battery, the more current is
drawn to recharge it; therefore, overall current draw can fluctuate even though usage
current remains unchanged.
Table 8: Power Consumption While Plugged Into USB
Conditions
Measured
Current
(mA)
Measured
Voltage
(V)
System Power
Consumed
1
(mW)
1. Conditions: PM2 + Baseboard
Module Power
Consumed
2
(mW)
2. Conditions: LCD and baseboard control circuits removed.
System Standby 73.73 4.93 363.49 348.58
System Idle 199.4 4.8 957.12 381.70
Playing music from NAND flash +
speaker out
220.4 4.79 1055.72 479.11
Charging empty battery + playing
music from NAND + controlling the PC
to play music through Bluetooth +
SideShow
3
3. This condition represents a high-drain application.
430.3 4.55 1407.73 1407.73
Table 9: Power Consumption While Drawing From Battery
Conditions
Measured
Current
(mA)
Measured
Voltage
(V)
System Power
Consumed
1
(mW)
1. Conditions: PM2 + Baseboard
Module Power
Consumed
2
(mW)
2. Conditions: LCD and baseboard control circuits removed.
System Standby 8.71 3.827 33.33 20.85
System Idle (no Bluetooth) 156.8 3.975 623.28 138.21
System Idle (Bluetooth connected) 171.3 3.86 661.22 188.83
Playing music from NAND flash +
speaker out (no Bluetooth)
194.1 3.785 734.67 270.91
Play music from NAND flash + speaker
out (Bluetooth connected)
215.3 3.82 822.45 354.83
Bluetooth connected in searching
mode + playing music from NAND +
speaker out
3
3. This condition represents a high-drain application.
245.7 3.9 958.23 481.79