POEPHYTEREV-I National Semiconductor, POEPHYTEREV-I Datasheet - Page 69

• Manufacturer Part Number: POEPHYTEREV-I
• Description: BOARD EVAL LM5072, DP83848I
• Manufacturer: National Semiconductor
• Series: PHYTER®r

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

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