Hardware Design Specification
ASD-B-16-0247 Rev1.3
Page 96 of 105
September 8, 2017
RTK00V2XRC7746SFS
7.9
Sub board Tortuga wireless module board dimension
The Tethys board can connect to Tortuga wireless module through MINI PCIE interface transfer board, and the transfer
sub board dimension is shown as below(Unit: mm): Please connect this board to CN9, CN12.
7.9.1
RF characteristic
*1 typical operating condition (Just informative, not guaranteed.):
*1 HW = Tortuga7, Ta = 25°C, VDD3V3 =3.3V, VDD1V2 =1.2V, VDD5V0=5.0V
*1 Measurement point is circled in red in the figure below
(1) Receive characteristic
Min
Typ
Max
Unit
Condition
Frequency range
5850
5925
[MHz]
Input VSWR
2.0
-
5890MHz
Minimum Sensitivity
(Diversity off)
-94
[dBm]
Data rate = 3Mbps
-93
[dBm]
Data rate = 6Mbps
-87
[dBm]
Data rate = 12Mbps
-77
[dBm]
Data rate = 27Mbps
Minimum Sensitivity
(Diversity on)
-94
[dBm]
Data rate = 3Mbps
-94
[dBm]
Data rate = 6Mbps
-87
[dBm]
Data rate = 12Mbps
-80
[dBm]
Data rate = 27Mbps
Maximum
Input Level
(Diversity off)
-20
[dBm]
Data rate = 27Mbps
Maximum
Input Level
(Diversity on)
-20
[dBm]
Data rate = 27Mbps
Adjacent channel rejection
(Diversity off)
30
[dB]
Data rate = 3Mbps
29
[dB]
Data rate = 6Mbps
28
[dB]
Data rate = 12Mbps
18
[dB]
Data rate = 27Mbps
Nonadjacent Adjacent channel
rejection
(Diversity off)
44
[dB]
Data rate = 3Mbps
41
[dB]
Data rate = 6Mbps
36
[dB]
Data rate = 12Mbps
27
[dB]
Data rate = 27Mbps
(2) Transmit characteristic