MAX3996 Ver la hoja de datos (PDF) - Maxim Integrated

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Fabricante

MAX3996

3.0V to 5.5V, 2.5Gbps VCSEL and Laser Driver

Maxim Integrated 

3.0V to 5.5V, 2.5Gbps VCSEL

and Laser Driver

ABSOLUTE MAXIMUM RATINGS

Supply Voltage at VCC...........................................-0.5V to +7.0V

Voltage at TX_DISABLE, PORDLY, MON1, COMP,

IN+, IN-, MD, BIAS, MODSET, TC..........-0.5V to (VCC + 0.5V)

Voltage between COMP and MON2 .....................................2.3V

Voltage between IN+ and IN- ..................................................5V

Voltage at OUT+, OUT- .........................(VCC - 2V) to (VCC + 2V)

Voltage between MON1 and MON2 .....................................1.5V

Voltage between BIAS and MON2...........................................4V

Current into FAULT, SHDNDRV ..........................-1mA to +25mA

Current into OUT+, OUT- ....................................................60mA

Current into BIAS ..............................................................120mA

Continuous Power Dissipation (TA = +70°C)

20-Pin QFN (derate 20mW/°C)...................................1600mW

Operating Ambient Temperature Range .............-40°C to +85°C

Operating Junction Temperature Range. ..........-40°C to +150°C

Storage Temperature Range.... .........................-55°C to +150°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC = 3.0V to 5.5V, TA = 0°C to +70°C, unless otherwise noted. Typical values are at VCC = 3.3V, TC pin not connected, TA =

+25°C.) (Figure 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Supply Current

ICC

(Figure1)

(Note 1)

VCC = 3.3V, IMOD = 15mA

VCC = 5.5V, IMOD = 30mA,

RMODSET = 2.37kΩ

47

mA

52

75

Data Input Voltage Swing

VID

Total differential signal (Figure 2)

TX_DISABLE Input Current

0 < VPIN < VCC

TX_DISABLE Input High Voltage

VIH

TX_DISABLE Input Low Voltage

VIL

FAULT Output High Voltage

VOH

IOH = -100µA, 4.7kΩ < RFAULT < 10kΩ

FAULT Output Low Voltage

VOL

IOL = 1mA

BIAS GENERATOR

200

-100

2.0

2.4

2200

+100

0.8

0.4

mVP-P

µA

V

V

V

V

Minimum Bias Current

Maximum Bias Current

MD Quiescent Voltage

Monitor Resistance

MD Input Current

IBIAS

IBIAS

VMD

RMON

Current into BIAS pin

Current into BIAS pin

APC loop is closed

FAULT = high

TX_DISABLE = high

(Figure 4)

FAULT = low, TX_DISABLE = low

1

mA

60

mA

1.04 1.12

VCC - 0.73

V

VCC - 0.73

9.3

11

12.7

Ω

-3

+0.8

+3

µA

BIAS Current During Fault

APC Time Constant

POWER-ON RESET (POR)

POR Threshold

POR Delay

POR Hysteresis

SHUTDOWN

Voltage at SHDNDRV

LASER MODULATOR

Data Rate

IBIAS_OFF

CCOMP = 0.1µF

tPORDLY

Measured at VCC

PORDLY = open (Note 3)

CPORDLY = 0.001µF (Note 3)

ISHDNDRV = 10µA, FAULT = high

ISHDNDRV = 1mA, FAULT = low

ISHDNDRV = 15mA, FAULT = low

10

µA

35

µs

2.65 2.7

3.0

V

30

55

µs

1.7

2.4

ms

20

mV

VCC - 0.4

0

VCC - 2.4 V

VCC - 1.2

< 3.2

Gbps

2 _______________________________________________________________________________________

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