DP83848C-POE-EK National Semiconductor, DP83848C-POE-EK Datasheet - Page 78

• Manufacturer Part Number: DP83848C-POE-EK
• Description: BOARD EVALUATION DP83848C
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of DP83848C-POE-EK

• 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: LM5072
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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8.2.25 10 Mb/s Internal Loopback Timing
Note: Measurement is made from the first rising edge of TX_CLK after assertion of TX_EN.
T2.25.1
Parameter
RXD[3:0]
TXD[3:0]
TX_CLK
RX_CLK
TX_EN to RX_DV Loopback
TX_EN
RX_DV
CRS
Description
10 Mb/s internal loopback mode
T2.25.1
78
Notes
Min
Typ
Max
2
Units
s