Datasheet

High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9118 129 Revision 1.5 (07-11-08)
DATASHEET
Note 7.7 Measured at the line side of the transformer, line replaced by 100Ω (+/- 1%) resistor.
Note 7.8 Offset from16 nS pulse width at 50% of pulse peak
Note 7.9 Measured differentially.
Note 7.10 Measured at the line side of the transformer, line replaced by 100Ω (+/- 1%) resistor.
Table 7.4 100BASE-TX Tranceiver Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Peak Differential Output Voltage
High
V
PPH
950 - 1050 mVpk Note 7.7
Peak Differential Output Voltage
Low
V
PPL
-950 - -1050 mVpk Note 7.7
Signal Amplitude Symmetry V
SS
98 - 102 % Note 7.7
Signal Rise & Fall Time T
RF
3.0 - 5.0 nS Note 7.7
Rise & Fall Time Symmetry T
RFS
--0.5nS Note 7.7
Duty Cycle Distortion D
CD
35 50 65 % Note 7.8
Overshoot & Undershoot V
OS
--5%
Jitter 1.4 nS Note 7.9
Table 7.5 10BASE-T Tranceiver Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Transmitter Peak Differential
Output Voltage
V
OUT
2.2 2.5 2.8 V Note 7.10
Receiver Differential Squelch
Threshold
V
DS
300 420 585 mV