DP83848VYB National Semiconductor, DP83848VYB Datasheet - Page 69

• Manufacturer Part Number: DP83848VYB
• Description: TRANSCEIVER, ENET PHY, 10/100, 48LQFP
• Manufacturer: National Semiconductor

Specifications of DP83848VYB

• Data Rate: 100Mbps
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 92mA
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +105°C
• Digital Ic Case Style: LQFP
• No.: RoHS Compliant
• Interface Type: MII Serial, RMII
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

T2.23.1
T2.23.2
T2.24.1
Parameter
Parameter
8.2.23 100BASE-TX Signal Detect Timing
Note: The signal amplitude on PMD Input Pair must be TP-PMD compliant.
8.2.24 100 Mb/s Internal Loopback Timing
Note: Due to the nature of the descrambler function, all 100BASE-TX Loopback modes will cause an initial “dead-time” of up to 550 µs during which time no data
Note: Measurement is made from the first rising edge of TX_CLK after assertion of TX_EN.
will be present at the receive MII outputs. The 100BASE-TX timing specified is based on device delays after the initial 550µs “dead-time”.
SD Internal Turn-on Time
SD Internal Turn-off Time
TX_EN to RX_DV Loopback
Description
Description
100 Mb/s internal loopback mode
Notes
Notes
69
Min
Min
Typ
Typ
30011743
30011742
Max
350
1
Max
240
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Units
Units
ms
µs
ns