DP83848C-POE-EK National Semiconductor, DP83848C-POE-EK Datasheet - Page 66

• 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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8.2.3 MII Serial Management Timing
8.2.4 100 Mb/s MII Transmit Timing
T2.3.1
T2.3.2
T2.3.3
T2.3.4
T2.4.1
T2.4.2
T2.4.3
Parameter
Parameter
MDIO (output)
MDC to MDIO (Output) Delay Time
MDIO (Input) to MDC Setup Time
MDIO (Input) to MDC Hold Time
MDC Frequency
TX_CLK High/Low Time
TXD[3:0], TX_EN Data Setup to TX_CLK
TXD[3:0], TX_EN Data Hold from TX_CLK 100 Mb/s Normal mode
MDIO (input)
TXD[3:0]
TX_CLK
TX_EN
MDC
MDC
Description
Description
T2.4.1
T2.3.4
T2.4.2
T2.3.2
Valid Data
Notes
66
Valid Data
100 Mb/s Normal mode
100 Mb/s Normal mode
T2.3.1
T2.4.3
T2.3.3
Notes
Min
10
10
0
T2.4.1
Typ
2.5
Min
16
10
0
Max
30
25
Typ
20
Max Units
24
Units
MHz
ns
ns
ns
ns
ns
ns