POEPHYTEREV-I National Semiconductor, POEPHYTEREV-I Datasheet - Page 69
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POEPHYTEREV-I
Manufacturer Part Number
POEPHYTEREV-I
Description
BOARD EVAL LM5072, DP83848I
Manufacturer
National Semiconductor
Series
PHYTER®r
Datasheets
1.DP83848IVVNOPB.pdf
(84 pages)
2.LM5072MHX-50NOPB.pdf
(26 pages)
3.DP83848C-MAU-EK.pdf
(18 pages)
Specifications of POEPHYTEREV-I
Main Purpose
Special Purpose DC/DC, Power Over Ethernet
Outputs And Type
1, Isolated
Power - Output
24W
Voltage - Output
3.3V
Current - Output
7.3A
Voltage - Input
39 ~ 57V
Regulator Topology
Flyback
Frequency - Switching
250kHz
Board Type
Fully Populated
Utilized Ic / Part
DP83848, LM5072
Lead Free Status / RoHS Status
Not applicable / Not applicable
- Current page: 69 of 84
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8.2.8 100BASE-TX Transmit Timing (t
Note: Normal Mismatch is the difference between the maximum and minimum of all rise and fall times
Note: Rise and fall times taken at 10% and 90% of the +1 or -1 amplitude
T2.8.1
T2.8.2
Parameter
PMD Output Pair
PMD Output Pair
eye pattern
100 Mb/s PMD Output Pair t
and t
100 Mb/s t
100 Mb/s PMD Output Pair
Transmit Jitter
T2.8.2
F
Description
R
and t
F
Mismatch
+1 rise
R/F
R
& Jitter)
T2.8.1
+1 fall
T2.8.2
69
Notes
T2.8.1
90%
10%
-1 fall
10%
90%
T2.8.1
Min
3
Typ
4
T2.8.1
Max
500
www.national.com
1.4
5
-1 rise
Units
ns
ps
ns
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