UC6580 EVK User Manual
UC-08-C43 EN R1.0
Positioning and Power Consumption Test
9
Figure 4-2 Testing Power Consumption
If you just have one multimeter, you can measure the current VDDIO
current
and
DCDC_IN
current
respectively. Make sure that when you measure either one of the
current values, the other jumper cap is installed.
4.2.1.2
Powered by External Voltage
When you use the external voltage to power the adapter, the power consumption is
tested as follows.
1.
Remove the jumper caps of DCDC_IN (J10) and VDDIO (J1).
2.
Connect the positive end (red) of the external power device to the pin 2 of DCDC_IN
(J10) and VDDIO (J1). Here, you can use a one to two cable.
3.
Connect the negative end (black) to the GND.
4.
Connect the EVK to the PC through the USB interface. Then the EVK is powered.
5.
Connect the signal source to the antenna SMA interface J4. Set the signal strength
to -130 dBm.
6.
Start the UPrecise and make sure that the positioning is successful.
7.
Read the current values of DCDC_IN
current.
and VDDIO
current
.
