2 Electrical specifications
Unless otherwise stated, the values specified are measured on the evaluation board of the
Ophelia-I with T=25°C, VDD=3 V, f=2.44 GHz, internal DC-DC converter in use.
Many electrical specifications depend on the specific firmware flashed on the
module. For example specifications with Bluetooth
®
LE 5.1 firmware, please
refer to the Proteus-e user manual [3]. For chipset specifications, please refer
to documentation from Nordic [1]
2.1 Recommended operating conditions
Description
Min.
Typ.
Max.
Unit
Ambient temperature
-40
25
85
°C
Supply voltage (VDD)
1.8
3
3.6
V
Supply rise time (0V to
≥
1.7V)
60
ms
Table 2: Recommended operating conditions
The on-chip power-on reset circuitry may not function properly for rise times
longer than the specified maximum.
An instable supply voltage may significantly decrease the radio performance
and stability.
2.2 Absolute maximum ratings
Parameter
Min.
Max.
Unit
Supply voltage (VDD)
-0.3
+3.9
V
Voltage on any digital pin (VDD
<
3.6V)
-0.3
VDD+0.3
V
Voltage on any digital pin (VDD
≥
3.6V)
-0.3
3.9
V
Input RF level
10
dBm
Flash endurance
10 000
Write/erase cycles
Table 3: Absolute maximum ratings
Ophelia-I reference manual version 1.0
© January 2022
www.we-online.com/wireless-connectivity
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