80220 Datasheet, PDF (56/91 Pages) LSI Computer Systems – 100BASE-TX/10BASE-T Ethernet Media Interface Adapter

80220/80221
TWISTED PAIR CHARACTERISTICS, TRANSMIT
Unless otherwise noted, all test conditions are as follows:
1. T_A= 0 to +70°C
2. V_CC = 5V +/-5%
3. 25 MHz +/- 0.01%
4. REXT = 10K +/- 1%, no load
5. TPO± loading shown in Figure 11 or equivalent.
SYM
T
OV
PARAMETER
TP Differential Output
Voltage
T_OVS
T
ORF
T_ORFS
T_ODC
TP Differential Output
Voltage Symmetry
TP Differential Output
Rise And Fall Time
TP Differential Output
Rise And Fall Time
Symmetry
TP Differential Output
Duty Cycle Distortion
T
TP Differential Output
OJ
Jitter
T
TP Differential Output
OO
Overshoot
T_OVT
TP Differential Output
Voltage Template
T_SOI
TP Differential Output
SOI Voltage Template
T
TP Differential Output
LPT
Link Pulse Voltage
Template
T_OIV
TP Differential Output
Idle Voltage
MIN
0.950
1.165
2.2
2.694
98
3.0
LIMIT
TYP
1.000
1.225
2.5
3.062
MAX
1.050
1.285
2.8
3.429
102
UNIT
V pk
V pk
V pk
V pk
%
5.0
nS
+/- 0.5 nS
+/-
nS
0.25
+/- 1.4 nS
CONDITIONS
100 Mbps, UTP Mode, 100 Ohm Load
100 Mbps, STP Mode, 150 Ohm Load
10 Mbps, UTP Mode, 100 Ohm Load
10 Mbps, STP Mode, 150 Ohm Load
100 Mbps, Ratio of Positive And
Negative Amplitude Peaks on TPO±
100 Mbps
TRFADJ [1:0] = 10
100 Mbps, Difference Between Rise
And Fall Times on TPO±
TRFADJ [1:0] = 10
100 Mbps, Output Data=0101... NRZ
Pattern Unscrambled, Measure At 50%
Points
100 Mbps, Output Data=scrambled /H/
5.0
% 100 Mbps
See Figure 4
10 Mbps
See Figure 6
10 Mbps
See Figure 7
10 Mbps, NLP and FLP
+/- 50 mV
10 Mbps. Measured on Secondary
Side of Xfmr in Figure 11.
56
MD400159/E