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M02067 -12/-13

7

3.3 Volt Laser Driver IC for GbE and Fibre Channel to 2.1 Gbps

Rev V4

2.0 Pin Description

2.1

Pin Descriptions

Table 2-1.

Pin Descriptions

Pin Number

Pin Name

Function

1

ENA

Bias and modulation output enable (TTL/CMOS). Logic HIGH for normal operation.

2

DIS

Bias and modulation output disable (TTL/CMOS). Logic LOW for normal operation.

5FAIL

Mean power control failure indicator (TTL/CMOS). Goes LOW when control loop is no longer able to maintain

constant current at PD.

6OCA

7

GND

Ground.

8

BIAS

Laser bias current output.

Power supply.

10

OUT+

11

OUT-

12

Ground to output stage.

13

PD

Monitor photodiode input. This input is connected to the monitor photodiode anode for automatic power

control.

14

15

GND

Ground.

16

17

which compensation starts.

18

Modulation current set. Connect a resistor between this pin and ground to set.

19

Over-current alarm set. Connect a resistor between this pin and ground to set.

20

Power supply.

21

Positive data input (PECL). Self biased.