USB Hub with Integrated 10/100 Ethernet Controller

Datasheet

Note 4.6 This is the total 5.5V input leakage for the entire device.

Note 4.7 XI can optionally be driven from a 25MHz single-ended clock oscillator.

Table 4.3 100BASE-TX Transceiver Characteristics

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

 

NOTES

 

 

 

 

 

 

 

 

Peak Differential Output Voltage High

VPPH

950

-

1050

mVpk

 

Note 4.8

Peak Differential Output Voltage Low

VPPL

-950

-

-1050

mVpk

 

Note 4.8

Signal Amplitude Symmetry

VSS

98

-

102

%

 

Note 4.8

Signal Rise and Fall Time

TRF

3.0

-

5.0

nS

 

Note 4.8

Rise and Fall Symmetry

 

TRFS

-

-

0.5

nS

 

Note 4.8

Duty Cycle Distortion

 

DCD

35

50

65

%

 

Note 4.9

Overshoot and Undershoot

VOS

-

-

5

%

 

 

Jitter

 

 

 

 

1.4

nS

 

Note 4.10

 

 

 

 

 

 

 

 

Note 4.8 Measured at line side of transformer, line replaced by 100Ω (+/- 1%) resistor.

 

Note 4.9

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

 

 

 

 

Note 4.10

Measured differentially.

 

 

 

 

 

 

Table 4.4 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 4.11

Receiver Differential Squelch Threshold

VDS

300

420

585

mV

 

Note 4.11 Min/max voltages guaranteed as measured with 100Ω resistive load.

Revision 1.0 (04-20-09)

42

SMSC LAN9514

 

DATASHEET