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AT86RF231
13. Typical Characteristics
13.1
13.1.1
Active Supply Current
The following charts showing each a typical behavior of the AT86RF231. These figures are not
tested during manufacturing. All power consumption measurements are performed with pin 17
(CLKM) disabled, unless otherwise stated. The measurement setup used for the measurements
is shown in Figure 5-1 on page 12 .
Power consumption for the microcontroller required to program the radio transceiver is not
included in the measurement results.
The power consumption in SLEEP state mode is independent from CLKM master clock rate
selection.
The current consumption is a function of several factors such as: operating voltage, operating
frequency, loading of I/O pins, switching rate of I/O pins, and ambient temperature. The dominat-
ing factors are operating voltage and ambient temperature.
If possible the measurement results are not affected by current drawn from I/O pins. Register,
SRAM or Frame Buffer read or write accesses are not performed during current consumption
measurements.
P_ON and TRX_OFF states
Figure 13-1. Current Consumption in P_ON State
0.7
8 5 °C
0.6
0.5
0.4
0.3
0.2
0.1
0
25 °C
0 °C
-40 °C
1.6
1. 8
2.0
2.2
2.4
2.6
2. 8
3.0
3.2
3.4
3.6
3. 8
E V DD [ V ]
162
8111C–MCU Wireless–09/09
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