SMSC LAN91C111 - Manual (Page 108)

10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
Revision 1.91 (08-18-08) 108 SMSC LAN91C111 REV C
DATASHEET
13.3 Twisted Pair Characteristics, Transmit
V DD = 3.3v +/- 5%
RBIAS = 11K +/- 1 %, no load
SYM PARAMETER
LIMIT
UNIT CONDITIONS
MIN TYP MAX
Tov TP Differential Output
Voltage 0.950 1.000 1.050 Vpk 100 Mbps, UTP Mode,
100 Ohm Load
1.165 1.225 1.285 Vpk 100 Mbps, STP Mode,
150 Ohm Load
2.2 2.5 2.8 Vpk 10 Mbps, UTP Mode,
100 Ohm Load
2.694 3.062 3.429 Vpk 10 Mbps, STP Mode,
150 Ohm Load
Tovs TP Differential Output
Voltage Symmetry 98 102 % 100 Mbps, Ratio of Positive And
Negative Amplitude Peaks on TPO±
TORF TP Differential Output
Rise And Fall Time 3.0 5.0 nS 100 Mbps
TRFADJ [1:0] = 10
TORFS TP Differential Output
Rise And Fall Time
Symmetry +/-0.5 nS 100 Mbps, Difference Between Rise
and Fall Times on TPO±
ToDC TP Differential Output
Duty Cycle Distortion +/-
0.25 nS 100 Mbps, Output Data=0101... NRZ
Pattern Unscrambled, Measure At
50% Points
ToJ TP Differential Output
Jitter +/-1.4 nS 100 Mbps, Output Data=scrambled /H/
Too TP Differential Output
Overshoot 5.0 % 100 Mbps
TOVT TP Differential Output
Voltage Template See Figure 7.4 10 Mbps
TSOI TP Differential Output
SOI Voltage
Template See Figure 7.6 10 Mbps
TLPT TP Differential Output
Link Pulse Voltage
Template See Figure 7.7 10 Mbps, NLP and FLP
TOIV TP Differential Output
Idle Voltage +/-50 mV 10 Mbps.
TOIA TP Output Current 38 40 42 mA pk 100 Mbps, UTP with TLVL[3:0]=1000
31.06 32.66 34.26 mA pk 100 Mbps, STP with TLVL[3:0]=1000
88 100 112 mA pk 10 Mbps, UTP with TLVL[3:0]=1000
71.86 81.64 91.44 mA pk 10 Mbps, STP with TLVL[3:0]=1000