CONEX CX02066TQ32, CX02066B24 Datasheet

Microcosm

FEATURES DESCRIPTION

CONNECTIONS

APPLICATIONS ORDERING INFORMATION

CX02066

3.3 Volt Laser Driver IC for Applications to 3 Gbps

PAGE -1-

G High speed operation; suitable for

applications to 3 Gbps.
Typical rise/fall times <90 ps.

G DC or AC coupled modulation drive.
G Differential data and clock inputs to

minimize pattern dependent jitter.

G Independently Programmable Laser Bias

and Modulation currents.
Bias current to 100 mA and modulation current
to 85 mA at VCC=3.3V

G Automatic Laser P ower Control, with

programmable T emperature Compensation
and ‘Slow-Start’.

G Bias and modulation current monitor
G Operates with +3.3 Volt supply
G Functionally compatible with MAX 3869
G The CX02066 is available in die form, or

packages (BCC+24 or TQFP32)

G Short reach SONET/SDH
G Metro SONET/SDH
G Datacomms Modules

CX02066

ADV ANCED INFORMA TION - REV FF

The CX02066 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 CX02066 supplies the bias and
modulation current for driving 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 CX02066 includes automatic power control to
maintain a constant average laser output power over
temperature and life. In addition, the modulation
current is 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 .

BCC+24 TQFP32TOP VIEW

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17

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1

CEN

DIS

GND

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FAIL

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BIAS

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PD

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GND

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TC

START

TC

SLOPE

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SET

OCA

SET

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IN

V

CC

4mm

4mm

V

CC

DATE CODE

CX02066

1

2

7

6

5

4

3

8

24

23

18

19

20

21

22

17

12

9

10

11

15

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29

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V

CC

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CC

V

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GND

A

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A

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C

MPC

NC

TC

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MPC

SET

MOD

SET

OCA

SET

V

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5mm

5mm

CX02066

3.3 Volt Laser Driver IC for Applications to 3 Gbps

CX02066ADV ANCED INFORMA TION - REV FF

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PIN DESCRIPTION - BCC+24

PAGE -2-

CX02066

3.3 Volt Laser Driver IC for Applications to 3 Gbps

CX02066ADV ANCED INFORMA TION - REV FF

PIN DESCRIPTION - TQFP 32

P A GE -3-

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CX02066

3.3 Volt Laser Driver IC for Applications to 3 Gbps

CX02066ADV ANCED INFORMA TION - REV FF

PIN DESCRIPTION - TQFP 32

P A GE -4-

ABSOLUTE MAXIMUM RATINGS

These are the absolute maximum ratings at or beyond which the IC can be expected to fail or be damaged.
Reliable operation at these extremes for any length of time is not implied.

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