Typical characteristics, 1 active supply current, 1 trx_off state – Rainbow Electronics AT86RF231 User Manual
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8111A–AVR–05/08
AT86RF231
13. Typical Characteristics
13.1
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
.
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.
13.1.1
TRX_OFF state
Figure 13-1. Current Consumption in TRX_OFF State
Current Consumption in TRX_OFF State
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
EVDD (V)
85 °C
25 °C
-40 °C
0 °C
0.00
0.10
0.20
0.30
0.40
0.50
C
u
rrent Cons
u
mption (mA)