dp83848qsqx/nopb National Semiconductor Corporation, dp83848qsqx/nopb Datasheet - Page 57

• Manufacturer Part Number: dp83848qsqx/nopb
• Description: Phyter Extended Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver
• Manufacturer: National Semiconductor Corporation

T2.7.1
T2.8.1
T2.8.2
Parameter
Parameter
15.2.7 100BASE-TX Transmit Packet Deassertion Timing
Note: Deassertion is determined by measuring the time from the first rising edge of TX_CLK occurring after the deassertion of TX_EN to the first bit of the “T”
15.2.8 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
code group as output from the PMD Output Pair. 1 bit time = 10 ns in 100 Mb/s mode.
TX_CLK to PMD Output Pair Deassertion 100BASE-TX and 100BASE-FX modes
100 Mb/s PMD Output Pair t
100 Mb/s t
100 Mb/s PMD Output Pair Transmit Jitter
R
and t
Description
Description
F
Mismatch
R
and t
R/F
& Jitter)
F
57
Notes
Notes
Min
3
Min
Typ
30152526
4
Typ
5
Max
500
1.4
30152527
5
Max
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Units
Units
ns
ps
ns
bits