ML4644CQ datasheet(5/11 Pages) MICRO-LINEAR

No de pièce	ML4644CQ

Description	4 Port AUI Multiplexer

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Fabricant	MICRO-LINEAR [Micro Linear Corporation]

Site Internet	http://www.microlinear.com

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5 / 11 page

5

ML4644

AC ELECTRICAL CHARACTERISTICS

SYMBOLS

PARAMETER

MIN

TYP.

MAX

UNITS

TRANSMIT

tXODY

Transmitter Turn-On Delay

100

200

ns

tTXSDY

Transmit Steady State Prop. Delay

15

ns

tTXFPW

Transmit Turn-Off Pulse Width

180

ns

tTXSOI

Transmit Turn-Off Start of Idle

200

250

ns

RECEIVE

tRXODY

Receive Turn-On Delay

100

200

ns

tRXSDY

Receive Steady State Prop. Delay

15

ns

tRXFPW

Receive Turn-Off Pulse Width

180

ns

tRXSOI

Receive Turn-Off Start of Idle

200

250

ns

tAR

Differential Output Rise Time

3

ns

20% to 80% (Rx±, COL±, TxOUT±)

tAF

Differential Output Fall Time

3

ns

20% to 80% (Rx±, COL±, TxOUT±)

COLLISION

tCPSQE

Collision Present to SQE Assert

0

200

ns

tSQEXR

Time for SQE to Deactivate After a Collision

0

500

ns

FCLF

Collision Frequency

XTAL Controlled

8.5

10

11.5

MHz

Collision Pulse Duty Cycle

XTAL Controlled

40

50

60

%

FJAM

JAM Frequency at TxOUT±

XTAL Controlled

5

MHz

tSQEDY

SQE Test Delay (Tx Inactive to SQE)

0.6

1.1

1.6

µs

tSQETD

SQE Test Duration

0.5

1.0

1.5

µs

JABBER, LINK TEST AND LED TIMING

tJAD

Jabber Activation Delay

7

13.5

20

ms

tJSQE

Delay from Outputs Disabled to Collision Oscillator On

100

ns

tLEDT

REC, COLL, Tx1, Tx2, Tx3, Tx4 On Time

0.3

1.0

3.0

ms

Numéro de pièce similaire - ML4644CQ

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Micro Linear Corporatio...	ML4642	277Kb / 15P	AUI Multiplexer
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