Datasheet

Figure 23-15. I
2
C Timing
I2CSCL
I2CSDA
I1
I2
I4
I6
I7 I8
I5
I3 I9
23.2.11 Ethernet Controller
Table 23-23. 100BASE-TX Transmitter Characteristics
a
UnitMaxNomMinParameter Name
mVpk1050-950Peak output amplitude
%102-98Output amplitude symmetry
%5--Output overshoot
ns5-3Rise/Fall time
ps500--Rise/Fall time imbalance
ps---Duty cycle distortion
ns1.4--Jitter
a. Measured at the line side of the transformer.
Table 23-24. 100BASE-TX Transmitter Characteristics (informative)
a
UnitMaxNomMinParameter Name
dB--16Return loss
µH--350Open-circuit inductance
a. The specifications in this table are included for information only. They are mainly a function of the external transformer
and termination resistors used for measurements.
Table 23-25. 100BASE-TX Receiver Characteristics
UnitMaxNomMinParameter Name
mVppd-700600Signal detect assertion threshold
mVppd-425350Signal detect de-assertion threshold
kΩ-20-Differential input resistance
ns--4Jitter tolerance (pk-pk)
%+75--75Baseline wander tracking
µs1000--Signal detect assertion time
µs4--Signal detect de-assertion time
Table 23-26. 10BASE-T Transmitter Characteristics
a
UnitMaxNomMinParameter Name
V2.8-2.2Peak differential output signal
dB--27Harmonic content
ns-100-Link pulse width
June 18, 2012762
Texas Instruments-Production Data
Electrical Characteristics
NRND: Not recommended for new designs.