Datasheet > CX02068G-TQ32

CX02068G-TQ32

更新时间： 2024-11-02 00:57:03

品牌	Logo	应用领域
泰科 - TE		电信电信集成电路
页数	文件大小	规格书
18页	632K
描述
3.3 Volt Laser Driver IC for 155/622 Mbps

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CX02068G-TQ32 数据手册

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Publications for latest revision information.

CX02068

3.3 Volt Laser Driver IC for 155/622 Mbps

The CX02068 is a highly integrated, programmable laser driver intended for Telecom applications up to 622 Mbps.

Using differential PECL data, the CX02068 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 CX02068 includes automatic power control (APC) 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.

Applications

• OC-3/STM1, SONET/SDH

• OC-12/STM4, SONET/SDH

• ATM

Features

• Rise and fall times <180 ps

• Operates with +3.3 volt supply

• DC or AC-coupled modulation drive.

• FTTH

• Independently programmable laser bias (to 100 mA) and

modulation currents (to 85 mA).

• Automatic laser power control, with programmable temperature

compensation and ‘Slow-Start’.

• Bias and modulation current monitors

• Failure monitor

• Available in BCC+24 , TQFP32 and DIE packages

• Available in RoHS compliant packages

Functional Block Diagram

OUT-

OUT+

SHUNT

GNDA

X100

DIS

ENA

BIAS

MOD

MON

X55

BIAS

I _BIAS

I_{MOD PP}

Failure

Detect

FAIL

MON

MPCSET

REF

OCA

SET

MPC

OCA

02068-DSH-001-C

Mindspeed Technologies

April 2006

Mindspeed Proprietary and Confidential

12 3 4 5 6 7...18

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