User`s manual

RTD Embedded Technologies, Inc. | www.rtd.com 9 LAN25255HR/LAN35255HR User’s Manual
2 Specifications
Operating Conditions 2.1
Table 2: Operating Conditions
Symbol
Parameter
Test Condition
Min
Max
Unit
V
cc5
5V Supply Voltage
4.75
5.25
V
V
cc3
3.3V Supply Voltage
n/a
n/a
V
T
a
Operating Temperature
-40
+85
C
T
s
Storage Temperature
-55
+125
C
RH
Relative Humidity
Non-Condensing
0
90%
%
MTBF
Mean Time Before Failure
30C
TBD
Hours
Electrical Characteristics 2.2
Table 3: Electrical Characteristics
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
Power
+5V
Power Consumption
1 port connected (MAC/Phy)
2 ports connected
3 ports connected
4 ports connected
5 ports connected
5 ports and RJ45 SFP connected
1.3
1.8
2.2
2.7
3.2
4.0
W
I
BUS5
5V Current between buses
8.0
A
PCIe/104 Bus
Differential Output Voltage
0.8
1.2
V
DC Differential TX Impedance
95.2
116.9
Ω
Differential Input Voltage
0.175
3.3
V
DC Differential RX Impedance
92.7
115.8
Ω
Electrical Idle Detect Threshold
61
173
mV