02066-DSH-001-D

Mindspeed Technologies

®

November 2006

Preliminary Information / Mindspeed Proprietary and Confidential

The M02066 is a highly integrated, programmable laser driver intended for SONET/SDH applications with FEC to 3

Gbps. Using differential PECL data and clock inputs, the M02066 supplies the bias and modulation current

required to drive an edge-emitting laser. The modulation output can be DC-coupled to the laser diode, giving a

significant power saving over AC-coupled operation.

The M02066 includes automatic power control to maintain a constant average laser output power over temperature

and life. In addition, the modulation current can be temperature compensated to minimize variation in extinction

ratio over temperature.

Output flags indicate laser end of life as well as failure of the APC circuitry to maintain average output power.

General Note: This product was previously called the CX02066.

Features

• High speed operation; suitable for applications to 3 Gbps.

• Typical rise/fall times of 90 ps.

• DC or AC coupled modulation drive.

• Differential data and clock inputs to minimize pattern dependent

jitter.

• Independently Programmable Laser Bias and Modulation currents.

• Bias current to 100 mA and modulation current to 85 mA at VCC =

3.3 V

• Automatic Laser Power Control, with programmable temperature

compensation and ‘Slow-Start’.

• Bias and modulation current monitor

• Operates with +3.3 Volt supply

• Functionally compatible with MAX 3869

• The M02066-21 and M02066-51 are available in a BCC+24

package. The M02066-82 is available in a TQFP32 package.

• Available in RoHS compliant packages

Applications

• Short reach and Metro SONET/SDH

• Datacomms Modules

• Add/Drop Multiplexers

• Digital Cross Connects

Functional Block Diagram

X100

X60

Failure

Detect

DIS

ENA

60

60

FAIL

X1

OCA

BIASMON

MODMON

IBIAS

IMOD

OUT-

OUT+

VCC

IBIAS

RMPCSET

V CC

CMPC

VREF

PD

OCA SET

RD

GNDA

RSHUNT

CSHUNT

CEN

CLK

D

Q

DATA

MPC SET

NOTE: BCC+24 Package

PD and MPC

BIAS

Preliminary Information

This document contains information on a new product. The parametric information, although not

fully characterized, is the result of testing initial devices.

M02066

3.3 Volt Laser Driver IC for Applications to 3 Gbps Data Sheet