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ML4644CQ

4 Port AUI Multiplexer

Micro Linear Corporation 

ML4644

ABSOLUTE MAXIMUM RATINGS

OPERATING CONDITIONS

Absolute maximum ratings are limits beyond which the

life of the integrated circuit may be impaired. All voltages

unless otherwise specified are measured with respect to

ground.

Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . 5V ± 10%

RRSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.9ký ± 1%

Power Supply Voltage Range VCC . . . GND –0.3 to +6.0V

Input Current RRSET, All LED Driver Pins . . . . . . . 60mA

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150°C

Storage Temperature . . . . . . . . . . . . . . . . –65°C to 150°C

Lead Temperature (Soldering 10 seconds) . . . . . . . 260°C

Thermal Resistance (qJA) . . . . . . . . . . . . . . . . . . . 44°C/W

ELECTRICAL CHARACTERISTICS

Unless otherwise specified TA = 0°C to 70°C, VCC = 5V ± 10%. (Notes 1, 2)

PARAMETER

Power Supply Current ICC (Note 3)

LED Drivers: VOL

Transmit Squelch Voltage Level (Tx+, Tx–)

Differential Output Voltage

Common Mode Output Voltage

Differential Output Voltage Imbalance

Loopback Enable

CONDITIONS

VCC = 5V

RL=510ý (Note 4)

REC tied low

MIN

50

–300

±550

TYP.

150

–250

4.0

2

MAX

190

0.8

–200

±1200

±40

0.3

UNITS

mA

V

mV

mV

V

mV

V

Note 1: Limits are guaranteed by 100% testing , sampling, or correlation with worst-case test conditions.

Note 2: Low Duty cycle pulse testing is performed at TA.

Note 3: This does not include the current from the AUI pull down resistors or the LED output pins.

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