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| LAN9500 Datasheet, PDF (194/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode | |||
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LAN950x
Note 8-7
Note 8-8
Note 8-9
This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up
resistors add +/- 50uA per-pin (typical).
This is the total 5.5V input leakage for the entire device.
XI can optionally be driven from a 25MHz single-ended clock oscillator.
TABLE 8-13: 100BASE-TX TRANSCEIVER CHARACTERISTICS
Parameter
Symbol MIN
TYP
MAX Units
Peak Differential Output Voltage High
Peak Differential Output Voltage Low
Signal Amplitude Symmetry
Signal Rise and Fall Time
Rise and Fall Symmetry
Duty Cycle Distortion
Overshoot and Undershoot
Jitter
VPPH
VPPL
VSS
TRF
TRFS
DCD
VOS
950
-950
98
3.0
-
35
-
-
1050 mVpk
-
-1050 mVpk
-
102
%
-
5.0
nS
-
0.5
nS
50
65
%
-
5
%
1.4
nS
Note 8-10
Note 8-11
Note 8-12
Measured at line side of transformer, line replaced by 100Ω (+/- 1%) resistor.
Offset from 16nS pulse width at 50% of pulse peak.
Measured differentially.
Notes
Note 8-10
Note 8-10
Note 8-10
Note 8-10
Note 8-10
Note 8-11
Note 8-12
TABLE 8-14: 10BASE-T TRANSCEIVER CHARACTERISTICS
Parameter
Symbol MIN
TYP
MAX
Transmitter Peak Differential Output Voltage
VOUT
2.2
2.5
2.8
Receiver Differential Squelch Threshold
VDS
300
420
585
Note 8-13 Min/max voltages guaranteed as measured with 100Ω resistive load.
Units
V
mV
Notes
Note 8-13
DS00001875A-page 194
ï£ 2010 - 2015 Microchip Technology Inc.
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