LAN8818DSLASHKDX datasheet(79/101 Pages) MICROCHIP

79 / 101 page

LAN8818D

DS00005832C-page 79

Note 6-8

IEEE 802.3 clause 40.6.1.1.2 Test Mode 1

Note 6-9

From 1/2 of average VOP, Test Mode 1

Note 6-10

IEEE 802.3 clause 40.6.1.1.2 distortion processing

Note 6-11

Measured at line side of transformer, line replaced by 100

 (±1%) resistor.

Note 6-12

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

Note 6-13

Peak to Peak, measured differentially.

Note 6-14

Measured with 100

 resistive load.

Note 6-15

Measured differentially following the twisted-pair model with a 100

 resistive load.

Note 6-16

5 MHz square wave.

TABLE 6-8:

100BASE-TX TRANSCEIVER CHARACTERISTICS

Parameter

Symbol

Min

Typ

Max

Unit

Note

Peak Differential Output Voltage

ANSI X3.263 clause 9.1.2.2

VOUT

±0.95

—

±1.05

Note 6-11

Signal Amplitude Symmetry

ANSI X3.263 clause 9.1.4

VSS

——

Note 6-11

Signal Rise and Fall Time

ANSI X3.263 clause 9.1.6

TRF

3—5

Note 6-11

Rise and Fall Symmetry

ANSI X3.263 clause 9.1.6

TRFS

0—

0.5

Note 6-11

Duty Cycle Distortion

ANSI X3.263 clause 9.1.8

DCD

——

±0.25

Note 6-12

Overshoot and Undershoot

ANSI X3.263 clause 9.1.3

VOS

——

—

Output Jitter

ANSI X3.263 clause 9.1.9

——

0.7

1.4

Note 6-13

Reference Voltage of ISET

(using 6.04kΩ - 1% resistor)

VSET

—0.61—

—

TABLE 6-9:

10BASE-T/10BASE-Te TRANSCEIVER CHARACTERISTICS

Parameter

Symbol

Min

Typ

Max

Unit

Note

Transmitter Peak Differential Output

Voltage

IEEE 802.3 clause 14.3.1.2.1

VOUT

10BASE-T

2.2

2.5

2.8

Note 6-14

VOUT

10BASE-Te

1.54

—

1.96

Note 6-14

Output Jitter

IEEE 802.3 clause 14.3.1.2.3

—

1.8

3.5

Note 6-15

Signal Rise and Fall Time

TRF

—25—

—

Receiver Differential Squelch Threshold

IEEE 802.3 clause 14.3.1.3.2

VDS

300

400

—

Note 6-16

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