WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
2 Supported radio modules
The supported 2.4 GHz Würth Elektronik eiSos radio modules described in this application
note is the proprietary radio module
Thyone-I
Module
Form
factor
[mm
2
]
Freq.
band
[MHz]
Antenna
Protocol
Certification
Tarvos-III
27x17
868
50
Ω
pad
Proprietary
CE
Telesto-III
27x17
915
50
Ω
pad
Proprietary
IC FCC
Thebe-II
27x17
868
50
Ω
pad
Proprietary
CE
Themisto-I
27x17
915
50
Ω
pad
Proprietary
FCC IC
Thyone-I
12x8
2440
Smart antenna
Proprietary
CE FCC IC
TELEC
Table 1: Comparison: Features
Smart antenna connection gives the possibility to either connect the module’s internal antenna
or to use 50 Ohm connection toward an external antenna.
Module
VDD [V]
I
TX
[mA]
I
RX
[mA]
I
Sleep
[µA]
Power
TX
[dBm]
Tarvos-III
2.2 to 3.8
26
8
0.2
14
Telesto-III
2.2 to 3.8
26
8
0.2
14
Thebe-II
2.2 to 3.7
500
12
0.9
27
Themisto-I
2.2 to 3.7
400
12
0.9
25
Thyone-I
1.8 to 3.6
18.9
7.7
0.4
6
Table 2: Comparison: Electrical characteristics
Due to the form factor and pin compatibility, an adapter board is necessary to
use a 2.4 GHz module in the place of
sub-GHz proprietary module
.
5
Version 1.1, July 2023