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LAN9250 Datasheet(PDF) 407 Page - Microchip Technology

Part # LAN9250
Description  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 Datasheet(HTML) 407 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001913A-page 407
LAN9250
Note 23:
This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up resis-
tors add ±50 µA per-pin (typical).
Note 24:
Measured at line side of transformer, line replaced by 100 Ω (+/- 1%) resistor.
Note 25:
Offset from 16 ns pulse width at 50% of pulse peak.
Note 26:
Measured differentially.
Note 27:
Min/max voltages guaranteed as measured with 100 Ω resistive load.
TABLE 19-8:
100BASE-TX TRANSCEIVER CHARACTERISTICS
Parameter
Symbol
Min
Typ
Max
Units
Notes
Peak Differential Output Voltage High
VPPH
950
-
1050
mVpk
Note 24
Peak Differential Output Voltage Low
VPPL
-950
-
-1050
mVpk
Note 24
Signal Amplitude Symmetry
VSS
98
-
102
%
Note 24
Signal Rise and Fall Time
TRF
3.0
-
5.0
ns
Note 24
Rise and Fall Symmetry
TRFS
--
0.5
ns
Note 24
Duty Cycle Distortion
DCD
35
50
65
%
Note 25
Overshoot and Undershoot
VOS
--
5
%
Jitter
-
-
-
1.4
ns
Note 26
TABLE 19-9:
10BASE-T TRANSCEIVER CHARACTERISTICS
Parameter
Symbol
Min
Typ
Max
Units
Notes
Transmitter Peak Differential Output Voltage
VOUT
2.2
2.5
2.8
V
Note 27
Receiver Differential Squelch Threshold
VDS
300
420
585
mV



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