LAN91C111 datasheet(99/125 Pages) MICROCHIP

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LAN91C111

DS00002276A-page 100

 2011-2016 Microchip Technology Inc.

13.3

Twisted Pair Characteristics, Transmit

VDD = 3.3v +/- 5%

RBIAS = 11K +/- 1%, no load

SYM

Parameter

Limits

Unit

Conditions

MIN

TYP

MAX

Tov

TP Differential Output

Voltage

0.950

1.000

1.050

Vpk

100 Mbps, UTP Mode,

100 Ohm Load

1.165

1.225

1.285

Vpk

100 Mbps, STP Mode,

150 Ohm Load

2.2

2.5

2.8

Vpk

10 Mbps, UTP Mode,

100 Ohm Load

2.694

3.062

3.429

Vpk

10 Mbps, STP Mode,

150 Ohm Load

Tovs

TP Differential Output

Voltage Symmetry

102

100 Mbps, Ratio of Positive And

Negative Amplitude Peaks on TPO±

TORF

TP Differential Output

Rise And Fall Time

3.0

5.0

100 Mbps

TRFADJ [1:0] = 10

TORFS

TP Differential Output

Rise And Fall Time

Symmetry

+/-0.5

100 Mbps, Difference Between Rise

and Fall Times on TPO±

ToDC

TP Differential Output

Duty Cycle Distortion

+/-

0.25

100 Mbps, Output Data=0101... NRZ

Pattern Unscrambled, Measure At

50% Points

ToJ

TP Differential Output

Jitter

+/-1.4

100 Mbps, Output Data=scrambled /H/

Too

TP Differential Output

Overshoot

5.0

100 Mbps

TOVT

TP Differential Output

Voltage Template

See Figure 7-4

10 Mbps

TSOI

TP Differential Output

SOI Voltage

Template

See Figure 7-6

10 Mbps

TLPT

TP Differential Output

Link Pulse Voltage

Template

See Figure 7-7

10 Mbps, NLP and FLP

TOIV

TP Differential Output

Idle Voltage

+/-50

10 Mbps.

TOIA

TP Output Current

mA pk

100 Mbps, UTP with TLVL[3:0]=1000

31.06

32.66

34.26

mA pk

100 Mbps, STP with TLVL[3:0]=1000

100

112

mA pk

10 Mbps, UTP with TLVL[3:0]=1000

71.86

81.64

91.44

mA pk

10 Mbps, STP with TLVL[3:0]=1000

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