3.0V to 5.5V, 1.25Gbps/2.5Gbps

LAN Laser Drivers

_______________________________________________________________________________________

7

MD

FAULT CONDITION

REF

EN and EN

PIN

POL and POL

EN = low or open, EN = high or open

POL = POL

MON

Table 1. Typical Fault Conditions

>4.5

Grounded

>3.0

Open

OPERATING VOLTAGE

RANGE (V)

LV

Table 2. LV Operating Range

MODSET

and TC

Pin Description (continued)

PIN

QFN/

THIN QFN

MAX3286

MAX3296

TQFP

MAX3286

MAX3296

TSSOP-EP

MAX3287

MAX3297

MAX3289

MAX3299

TSSOP-EP

MAX3288

MAX3298

NAME

FUNCTION

24

27

12

12

OUT+

Modulation-Current Output. See the Typical

Application Circuits.

25

28

13

13

OUT-

Modulation-Current Output. See the Typical

Application Circuits.

27

31

15

15

MODSET

Modulation-Current Set. The resistor at

MODSET programs the temperature-stable

component of the laser modulation current.

28

32

16

16

TC

Temperature-Compensation Set. The resistor

at TC programs the temperature-increasing

component of the laser modulation current.

EP

—

EP

EP

Exposed

Pad

Ground. This must be soldered to the circuit

board ground for proper thermal

performance. See Layout Considerations.