LAN9420 Datasheet, PDF(161/171 Page) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

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LAN9420 Datasheet, PDF (161/171 Pages) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

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Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Table 5.7 100BASE-TX Transceiver Characteristics

PARAMETER

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

SYMBOL

VPPH

VPPL

VSS

TRF

TRFS

DCD

VOS

MIN

950

-950

98

3.0

-

35

-

TYP

MAX

-

1050

-

-1050

-

102

-

5.0

-

0.5

50

65

-

5

1.4

UNITS

mVpk

mVpk

%

nS

nS

%

%

nS

NOTES

Note 5.10

Note 5.10

Note 5.10

Note 5.10

Note 5.10

Note 5.11

Note 5.12

Note 5.10 Measured at line side of transformer, line replaced by 100Î© (+/- 1%) resistor.

Note 5.11 Offset from 16nS pulse width at 50% of pulse peak.

Note 5.12 Measured differentially.

Table 5.8 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

UNITS

V

mV

NOTES

Note 5.13

Note 5.13 Min/max voltages guaranteed as measured with 100Î© resistive load.

SMSC LAN9420/LAN9420i

161

DATASHEET

Revision 1.6 (07-18-11)

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