10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
13.3
Twisted Pair Characteristics, Transmit
V
DD
= 3.3v +/- 5%
RBIAS = 11K +/- 1 %, no load
LIMIT
SYM
PARAMETER
UNIT
CONDITIONS
MIN
TYP
MAX
T
ov
TP Differential Output 0.950
Voltage
1.000
1.225
2.5
1.050 Vpk
100 Mbps, UTP Mode,
100 Ohm Load
1.165
1.285 Vpk
100 Mbps, STP Mode,
150 Ohm Load
2.2
2.8
Vpk
10 Mbps, UTP Mode,
100 Ohm Load
2.694
3.062
3.429 Vpk
10 Mbps, STP Mode,
150 Ohm Load
T
ovs
TP Differential Output 98
Voltage Symmetry
102
%
100 Mbps, Ratio of Positive And
Negative Amplitude Peaks on TPO±
T
ORF
TP Differential Output 3.0
Rise And Fall Time
5.0
nS
100 Mbps
TRFADJ [1:0] = 10
T
TP Differential Output
Rise And Fall Time
Symmetry
+/-0.5
nS
100 Mbps, Difference Between Rise
and Fall Times on TPO±
ORFS
T
oDC
TP Differential Output
Duty Cycle Distortion
+/-
nS
100 Mbps, Output Data=0101... NRZ
Pattern Unscrambled, Measure At
50% Points
0.25
T
oJ
TP Differential Output
Jitter
+/-1.4 nS
100 Mbps, Output Data=scrambled /H/
T
TP Differential Output
Overshoot
5.0
%
100 Mbps
10 Mbps
10 Mbps
oo
T
OVT
TP Differential Output See Figure 7.4
Voltage Template
T
SOI
TP Differential Output See Figure 7.6
SOI Voltage
Template
T
TP Differential Output See Figure 7.7
Link Pulse Voltage
10 Mbps, NLP and FLP
10 Mbps.
LPT
Template
T
OIV
TP Differential Output
Idle Voltage
+/-50
42
mV
T
OIA
TP Output Current
38
40
mA pk
100 Mbps, UTP with TLVL[3:0]=1000
100 Mbps, STP with TLVL[3:0]=1000
10 Mbps, UTP with TLVL[3:0]=1000
10 Mbps, STP with TLVL[3:0]=1000
31.06
88
32.66
100
34.26 mA pk
112 mA pk
91.44 mA pk
71.86
81.64
Revision 1.8 (07-13-05)
122
SMSC LAN91C111-REV B
DATASHEET
SMSC [ SMSC CORPORATION ]
