User's Manual

Atmel AVR2080
15
8479A-AVR-01/12
7 Electrical characteristics
7.1 Absolute maximum ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause
permanent damage to the board. This is a stress rating only and functional operation
of the device at these or any other conditions beyond those indicated in the
operational sections of this manual are not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability. For more details
about these parameters, refer to individual datasheets of the components used.
Table 7-1. Absolute maximum ratings.
No. Parameter Condition Minimum Typical Maximum Unit
7.1.1 Storage temperature range -40 +85 °C
7.1.2 Humidity Non-condensing 90 % r.H.
7.1.3 Supply voltage -0.3 +3.6
7.1.4 EXT I/O pin voltage -0.3 V
CC
+ 0.3
V
7.1.5 Supply current from batteries Sum over all power pins -0.5 A
7.1.6 Battery charge current
(1)
0 mA
Note: 1. Keep power switch off or remove battery from REB-CBB when external power is supplied.
7.2 Recommended operating range
Table 7-2. Recommended operating range.
No. Parameter Condition Minimum Typical Maximum Unit
7.2.1 Operating temperature range Note
(1)
-20 +70 °C
7.2.2 Supply voltage (V
CC
) REB231FE2 and REB-CBB 2.0 3.0 3.6 V
Note: 1. Temperature range limited by crystal Q1, otherwise -40 … +85degC.
7.3 Current consumption
Test conditions (unless otherwise stated):
V
DD
= 3.0V, f
RF
= 2.45GHz, T
OP
= 25°C, TX_PWR=0xA, X2 conducted
Table 7-3 lists typical Atmel REB231FE2 current consumption values for different
operating modes. Current measurement is taken by replacing REB231FE2 jumper
‘JP1’ with an amperemeter, for REB-CBB figures refer to [2].
Table 7-3. Current co
nsumption of REB231FE2 (JP1).
No. Parameter Condition Minimum Typical Maximum Unit
7.3.1 Supply current I
DD,TRX_OFF
CLKM off 0.44
7.3.2 Supply current I
DD,PLL_ON
SE2431L enabled, RX mode 10.8
7.3.3 Supply current I
DD,RX_ON
SE2431L LNA high gain 17.6
7.3.4 Supply current I
DD,TX_Pmin
BUSY_TX (+5dBm) 40
7.3.5 Supply current I
DD,TX_Pdefault
BUSY_TX (+20dBm) 116
7.3.6 Supply current I
DD,TX_Pmax
BUSY_TX (+23dBm)
(1)
205
mA
Note: 1. V
DD
= 3.6V, AT86RF231 sub-register TX_PWR = 0x0.