SY88952LMI TR Micrel Inc, SY88952LMI TR Datasheet

SY88952LMI TR

Manufacturer Part Number

SY88952LMI TR

Description

IC LASER DRVR 2.7GBPS 3.6V 32MLF

Manufacturer

Micrel Inc

Type

Laser Diode Driver (Fiber Optic)r

Datasheet

1.SY88952LMG.pdf (7 pages)

Specifications of SY88952LMI TR

Data Rate

2.7Gbps

Number Of Channels

Voltage - Supply

3 V ~ 3.6 V

Current - Supply

85mA

Current - Modulation

90mA

Current - Bias

100mA

Operating Temperature

-40°C ~ 85°C

Package / Case

32-MLF®, QFN

Mounting Type

Surface Mount

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

SY88952LMITR
SY88952LMITR

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Micrel, Inc.

MLF and Micro LeadFrame are trademarks of Amkor Technology, Inc.

M9999-082205

hbwhelp@micrel.com or (408) 955-1690

FEATURES

APPLICATIONS

Single 3.3V power supply

Up to 2.7Gbps operation

Rise/Fall times: < 75ps

Independent programmable laser modulation and

bias currents

Bias current to 100mA and modulation current to

90mA

Automatic average laser power control

Bias and modulation current monitors

Operating temperature range of –40 C to +85 C

Complies with ANSI, ITU, and Bellcore SDH/SONET

specifications

Available in DIE form and 32-pin (5mm

EPAD-MLF™ package

OC-48 transceivers and transponders

SONET/SDH transmission system

Add drop mux

Metro area network

2.5Gbps optical transmitter

Fiber optical module

3.3V, 2.7Gbps SDH/SONET

LASER DRIVER WITH AUTOMATIC

POWER CONTROL

5mm)

laser driver for SONET/SDH application up to 2.7Gbps.

The device accepts differential PECL or LVDS data and

clock inputs. It provides programmable bias and

modulation currents for driving a laser. The modulation

output of SY88952L can be DC-coupled to drive the laser

diode, providing a significant power saving over AC-

coupled operation. A synchronizing TTL input latch can

be used to reduce jitter if a clock signal is available. A

TTL enable is also incorporated in the device. EN only

enables/disables I

SY88952L to maintain a constant average optical output

power over temperature and lifetime. The modulation

current can be externally temperature compensated to

minimize the variation of extinction ratio of the optical

output.

when the output signal is too high, or bias current is too

high.

maximum of it's range. I

this condition.

high (implying I

will shut off under this condition.

DESCRIPTION

SY88952L is a highly integrated and programmable

An automatic power controller (APC) is integrated into

Several safety features will enable an alarm function

There are two alarm conditions:

1. /FAIL asserts when bias current loop goes to

2. /FAIL asserts when I

BIAS

MOD

or I

. It does not enable/disable I

MOD

BIAS

BIASMAX

will be too high). All currents

and I

MOD

or I

Rev.: B

Issue Date: August 2005

MODSET

still flow under

SY88952L

Amendment: /0

SY88952L

are too

BIAS

Related parts for SY88952LMI TR

SY88952LMI TR Summary of contents

Page 1

Micrel, Inc. FEATURES Single 3.3V power supply Up to 2.7Gbps operation Rise/Fall times: < 75ps Independent programmable laser modulation and bias currents Bias current to 100mA and modulation current to 90mA Automatic average laser power control Bias and modulation current ...

Page 2

Micrel, Inc. PACKAGE/ORDERING INFORMATION VCC VCC VCC VCC CLK 5 20 /CLK VCC 7 18 VCC ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ..................................... +0V to +7.0V CC Input Voltage (V ) ............................................ + Output Current (I ) ............................................... 100mA OUT Lead Temperature (soldering, 10 sec.) ..................... 300 C Storage Temperature ...

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SY88952LMI TR Micrel Inc, SY88952LMI TR Datasheet

SY88952LMI TR

Specifications of SY88952LMI TR

Related parts for SY88952LMI TR

SY88952LMI TR Summary of contents

Page 1

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