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Low-power system design with AIROC™ Wi-Fi & Bluetooth® combo
chip and PSoC™ 6 MCU
Power measurement using CY8CKIT-062S2-43012
7
Power measurement using CY8CKIT-062S2-43012
7.1
Hardware setup
For power measurement, you should use a power analyzer such as
insights on power transitions and a better estimate of power saving achieved using offloads. If you do not have
access to a power analyzer, a simple 6 ½-digit multimeter can be used to monitor the PSoC™ 6 MCU and WLAN
average power individually.
062S2-43012 kit.
PSoC 6 MCU
Figure 18
Power measurement jumpers in CY8CKIT-062S2-43012
Do the following for power measurement in CY8CKIT-062S2-43012:
1. Measure current for PSoC™ 6 at J15 across VTARG and P6.VDD.
2. Ensure that J25 is removed. This eliminates the leakage current from VDDA through potentiometer R1.
3. Measure the current for AIROC™ CYW43012 Wi-Fi & Bluetooth® combo chip VBAT at J8 across VBAT and
VCC.VBAT.
4. Measure the current for AIROC™ CYW43012 Wi-Fi & Bluetooth® combo chip VDDIO at J17 across VDDIO.WL
and VCC.VDDIO2.
5. See
Figure 19
for a sample setup using the N6705B power analyzer from Keysight. Ensure that you select the
PSoC™ 6 MCU (VTARG) and AIROC™ CYW43012 Wi-Fi & Bluetooth® combo chip (VBAT) voltage as the same as
shown in the setup. The setup does not measure AIROC™ CYW43012 Wi-Fi & Bluetooth® combo chip VDDIO
because it usually varies and depends on the activity on SDIO lines and the impact is minimal during active
power measurement.
Application note
Figure 18
shows various power measurement jumpers available on the CY8CKIT-
J15
Power
Potentiometer
Power
J25
N6705B
from Keysight because it gives
J8
WLAN
power
WLAN VIO
power
36
J17
002-27910 Rev. *C
2023-05-29
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