Datasheet

DP83848VYB
www.ti.com SNLS266D –MAY 2007–REVISED APRIL 2013
4.12 AC Specifications — 100BASE-TX Receive Packet Latency Timing
Parameter Description Notes
(1)
Min Typ Max Units
T2.9.1 Carrier Sense ON Delay
(2)
100 Mb/s Normal mode
(3)
20 bits
T2.9.2 Receive Data Latency 100 Mb/s Normal mode
(3)
24 bits
(1) PMD Input Pair voltage amplitude is greater than the Signal Detect Turn-On Threshold Value.
(2) Carrier Sense On Delay is determined by measuring the time from the first bit of the “J” code group to the assertion of Carrier Sense.
(3) 1 bit time = 10 ns in 100 Mb/s mode.
4.13 AC Specifications — 100BASE-TX Receive Packet Deassertion Timing
Parameter Description Notes Min Typ Max Units
T2.10.1 Carrier Sense OFF Delay
(1)
100 Mb/s Normal mode
(2)
24 bits
(1) Carrier Sense Off Delay is determined by measuring the time from the first bit of the “T” code group to the deassertion of Carrier Sense.
(2) 1 bit time = 10 ns in 100 Mb/s mode.
Copyright © 2007–2013, Texas Instruments Incorporated Electrical Specifications 19
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