T485CFAA - TriQuint Semiconductor

T48-Type 1300 and 1500 nm

Uncooled 2.5 Gb/s Laser Transmitters

Data Sheet, Rev. 1

February 2003

TriQuint Optoelectronics

Offering multiple output power options and SONET/SDH com-

patibility, the T48-Type Uncooled Laser Transmitters are manu-

factured in a 24-pin plastic DIP with a single-mode fiber pigtail.

Features

■Multisource compliant

■Data rates to 2.5 Gb/s

■SONET and ITU-T compliant at OC-48 and

STM-16

■Uncooled, field-proven InGaAsP MQW laser

■1300 nm and 1500 nm versions

■Clocked or nonclocked operation with single-ended

or differential inputs

■50 Ω ac-coupled ECL or PECL compatible data and

clock inputs

■Operation from single +5 V or –5 V power supply

■Low-profile, 24-pin nonconductive package

■Automatic power control

■Wide operating case temperature range:

— T481, T483, –40 °C to +85 °C

— T485, –25 °C to +70 °C

■Laser back-facet monitor output

■Laser degrade alarm

■Transmitter-disable input

■FC, SC, LC, or MU connectors

Applications

■Telecommunications:

— SONET/SDH SR/IR/LR

— Subscriber loop

— Metropolitan area networks

■High-speed data communication

Description

The T48-Type 2.5 Gb/s Laser Transmitters are

designed for use in transmission systems and high-

speed data communication applications. The transmit-

ter operates at the SONET OC-48 rate, as well as the

ITU-T SDH rate of STM-16.

The transmitters meet all present Telcordia Technolo-

gies ™ GR-253CORE requirements and the ITU-T

G.957 and G.958 recommendations. They are also ide-

ally suited for extended-distance data and networking

applications.

Manufactured in a 24-pin, plastic-encased DIP, the

transmitter incorporates an InGaAs PIN photodiode

back-facet monitor, a GaAs laser driver IC, and a

choice of lasers, including:

■1300 nm hermetic Fabry-Perot laser (T481 versions)

■1300 nm hermetic MQW isolated DFB laser (T483

versions)

■1550 nm hermetic MQW isolated DFB laser (T485

versions)

The transmitter requires a single power supply (+5 V or

–5 V). A clock input can be enabled for those applica-

tions where jitter is critical.

Pin information is listed in Table 1.

riQ

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SEMICONDUCTOR

T48-Type

Transmitter

22 For additional information and latest specifications, see our website: www.triquint.com

T48-Type 1300 nm and 1500 nm Data Sheet, Rev. 1

Uncooled 2.5 Gb/s Laser Transmitters February 2003

Transmitter Processing

The transmitter can withstand normal wave soldering

processes. The complete transmitter module is not her-

metically sealed; therefore, it should not be immersed

in or sprayed with any cleaning solution or solvents.

The process cap and fiber-pigtail jacket can deform at

temperatures greater than 85 °C. The transmitter pins

can be wave-soldered at maximum temperature of

250 °C for 10 seconds.

Installation Considerations

Although the transmitter has been designed with rug-

gedness in mind, care should be used during handling.

The optical connector should be kept free from dust,

and the process cap should be kept in place as a dust

cover when the device is not connected to a cable. If

contamination is present on the optical connector, the

use of canned air with an extension tube should

remove any debris. Other cleaning procedures are

identified in the Cleaning Fiber-Optic Assemblies Tech-

nical Note (TN95-010LWP).

Connector Options

The standard fiber-optic pigtail is an 8 µm core single-

mode fiber in a 0.036 in. (914 µm) diameter, tight-buff-

ered outer jacket. The standard length is 39 in. ± 4 in.

(1 m ± 10 cm) and can be terminated with either an FC,

SC, LC, or MU optical connector. Other connector

options may be available on special order.

Table 1. Pin Descriptions

* Laser back-facet and bias monitor functions are customer-use

options that are not required for normal operations of the transmit-

ter. They are normally used during manufacture and for diagnos-

tics.

† Pins designated no user connection (NUC) cannot be tied to

ground or any other circuit potential.

Pin Number Name

2BF Monitor *

3 Bias Monitor*

4 Tx Disable

5 Clock Select

6Ground

7 NUC†

8 Laser Degrade Alarm

9 NUC†

10 NUC†

11 Ground

12 VEE

13 VCC

14 NUC†

15 Ground

16 DATA

17 Ground

18 DATA

19 Ground

20 Clock

21 Ground

22 Clock

23 Ground

24 VCC

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess

of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

*With VEE connected to –5 V, VCC must be at 0 V; with VCC connected to +5 V, VEE must be at 0 V.

Parameter Symbol Min Max Unit

Supply Voltage* — — 5.5 V

Operating Case Temperature Range:

T481 and T483

T485

–40

–25

°C

Storage Case Temperature Range: Tstg –40 8 5 ° C

Lead Soldering Temperature/Time — — 250/10 °C/s

Relative Humidity (noncondensing) RH — 85 %

Minimum Fiber Bend Radius — 1.00 (25.4) — in. (mm)

For additional information and latest specifications, see our website: www.triquint.com 3

Data Sheet, Rev. 1 T48-Type 1300 nm and 1500 nm

February 2003 Uncooled 2.5 Gb/s Laser Transmitters

Characteristics

Minimum and maximum values specified over operating case temperature range at 50% duty cycle data signal.

Typical values are measured at room temperature unless otherwise noted.

1. With VEE connected to –5 V, VCC must be at 0 V; with VCC connected to +5 V, VEE must be at 0 V.

2. Inputs are ac-coupled into an equivalent input impedance of 50 ¾.

3. Single-ended or differential operation may be used. If the inputs are driven single-ended, the unused inputs must be ac-coupled (0.1 µF) to

ground.

4. Clocked operation is optional. For clocked operation, pin 5 must be tied to VEE. With clocked operation, the optical output changes state with

the rising edge of the input clock signal. If left unconnected, the pin will be pulled low, enabling the clock mode.

5.The transmitter is normally enabled and only requires an external voltage to disable.

6.This voltage is measured from pin 3 to VEE and is converted to laser bias current with the ratio of 20 mV/mA.

Table 2. Electrical Characteristics

Parameter Symbol Min Typ Max Unit

dc Power Supply Voltage1V 4.75 5.0 5.25 V

dc Power Supply Current Drain I — 180 300 mA

Input Data/Clock Voltage:2, 3

Single-ended Input

Differential Input

VIN

400

200

800

400

1000

500

mVp-p

Clocked/Nonclocked Select Voltage:4

Clocked Operation (active-low)

Nonclocked Operation

VSEL_CLK

VEE

VCC – 2.0

—

VEE + 0.8

VCC

Input Impedance RIN —50— Ω

Transmitter Disable Voltage5VDIS VCC – 2.0 — VCC V

Transmitter Enable Voltage (enabled low) VEN VEE —VEE + 0.8 V

Laser Degrade Alarm:

Normal

Alarmed

—

VCC – 2.0

VEE

—

VCC

VEE + 0.8

Laser Bias Voltage 6VB0 200 1600 mV

Back-facet Monitor Voltage (50% duty cycle) VBF 470 500 530 mV

Set Time (See Figure 1.) tSET 70 — 330 ps

Hold Time (See Figure 1.) tHOLD 70 — — ps

Optical Rise Time (20%—80%) tR——70ps

Optical Fall Time (80%—20%) tF——150ps

4For additional information and latest specifications, see our website: www.triquint.com

T48-Type 1300 nm and 1500 nm Data Sheet, Rev. 1

Uncooled 2.5 Gb/s Laser Transmitters February 2003

Characteristics (continued)

Figure 1. Electrical Input/Output Interface Timing Diagram

1. Output power definitions and measurement per ITU-T Recommendation G.957 and G.958.

2. Full spectral width measured 20 dB down from the maximum of the central wavelength peak under fully modulated conditions.

3. Ratio of the average output power in the dominant longitudinal mode to the optical power in the most significant side mode under fully

modulated conditions.

4. Ratio of logic 1 output power to logic 0 output under fully modulated conditions.

5. GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria.

6. ITU-T Recommendation G.957, Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy.

Table 3. Optical Characteristics

Parameter Symbol Min Typ Max Unit

Average Power Output:1

T481xLAA

T483xFAA, T485xFAA

T483xDAA, T485xDAA

–10

–5

–2

–5

–2

–3

dBm

Center Wavelength Range:

T481xLAA

T483xFAA

T483xDAA

T485xFAA

T485xDAA

1266

1270

1280

1430

1500

—

1360

1335

1580

Spectral Width (T481 Version, F-P Laser) ∆λRMS —— 4nm

Spectral Width (T483/T485 Versions, DFB Laser)2∆λ20 — — 1 nm

Wavelength Shift with Temperature:

T481 Version

T483/T485 Versions

∆λ/∆T

—

0.4

0.1

—

nm/°C

Side-mode Suppression Ratio

(T483/T485 Version)3SSR 30 — — dB

Extinction Ratio4re8.2 — — dB

Shutdown Optical Power PSD —–80–70dBm

Eye Mask of Optical Output 5, 6 — Meets SONET and ITU-T

tSET tHOLD

1-1087(F)

For additional information and latest specifications, see our website: www.triquint.com 5

Data Sheet, Rev. 1 T48-Type 1300 nm and 1500 nm

February 2003 Uncooled 2.5 Gb/s Laser Transmitters

Outline Drawing

Dimensions are in inches and (millimeters).

1.100

(27.94)

0.495

(12.57)

0.018

(0.48) 0.100

(2.54)

0.710

(18.03)

2.305

(58.55)

0.950

(24.13)

0.122

(3.10)

0.014

(0.36)

13 24

12 1

0.144

(3.36)

BOTTOM VIEW

0.350

(8.89)

1.000

(25.40)

1.400

(35.56)

1-999.F

6For additional information and latest specifications, see our website: www.triquint.com

T48-Type 1300 nm and 1500 nm Data Sheet, Rev. 1

Uncooled 2.5 Gb/s Laser Transmitters February 2003

Qualification and Reliability

To help ensure high product reliability and customer satisfaction, TriQuint is committed to an intensive quality pro-

gram that starts in the design phase and proceeds through the manufacturing process. Optoelectronics modules

are qualified to TriQuint’s internal standards using MIL-STD-883 test methods and procedures and using sampling

techniques consistent with Telcordia Technologies requirements. This qualification program fully meets the intent of

Telcordia Technologies reliability practices TR-NWT-000468 and TA-TSY-000983. In addition, the TriQuint opto-

electronics design, development, and manufacturing facility has been certified to be in full compliance with the lat-

est ISO ® 9001 Quality System Standards.

Electrostatic Discharge

CAUTION:This device is susceptible to damage as a result of electrostatic discharge. Take proper precau-

tions during both handling and testing. Follow guidelines such as JEDEC Publication No. 108-A

(Dec. 1988).

TriQuint Semiconductor employs a human-body model (HBM) for ESD-susceptibility testing and protection-design

evaluation. ESD voltage thresholds are dependent on the critical parameters used to define the model. A standard

HBM (resistance = 1.5 kΩ, capacitance = 100 pF) is widely used and can be used for comparison purposes.

Laser Safety Information

Class I Laser Product

FDA/CDRH Class I laser product. All versions of the T48-Type transmitters are Class I laser products per CDRH,

21 CFR 1040 Laser Safety requirements. The transmitters have been classified with the FDA under accession

number 8720009. All versions are Class I laser products per IEC ® 60825-1:1993.

CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in

hazardous laser radiation exposure.

This product complies with 21 CFR 1040.10 and 1040.11.

8.8 µm/125 µm single-mode fiber pigtail with 914 µm tight-buffered outer jacket and connector

Wavelength = 1.3 µm, 1.5 µm

Maximum power = 1.6 mW

Because of size constraints, laser safety labeling is shipped with the device.

Product is not shipped with power supply.

Notice

Unterminated optical connectors can emit laser radiation.

Do not view with optical instruments.

For additional information and latest specifications, see our website: www.triquint.com 7

Data Sheet, Rev. 1 T48-Type 1300 nm and 1500 nm

February 2003 Uncooled 2.5 Gb/s Laser Transmitters

Ordering Information

* Please contact a TriQuint account manager for more information.

Coding Scheme

Example: T48XXXXX

Laser type:

1 = 1.3 µm Fabry-Perot laser; 3 = 1.3 µm DFB laser; 5 = 1.5 µm DFB laser

Optical connector:

C = SC; F = FC/PC

Typical power:

D = 0 dBm; F = –2 dBm; L = –5 dBm

Customer options:

AA—ZZ

Table 4. Ordering Information*

Product Code Laser Type Connector Typical Power

(dBm)

Comcode

T481CLAA 1.3 FP SC –5 108309162

T481FLAA 1.3 FP FC –5 108309170

T481WLAA 1.3 FP LC –5 108825795

T481JLAA 1.3 FP MU –5 TBD

T483CDAA 1.3 DFB SC 0 108309196

T483FDAA 1.3 DFB FC 0 108309212

T483WDAA 1.3 DFB LC 0 108825803

T483JDAA 1.3 DFB MU 0 TBD

T483CFAA 1.3 DFB SC –2 108309204

T483FFAA 1.3 DFB FC –2 108309220

T483WFAA 1.3 DFB LC –2 108825811

T483JFAA 1.3 DFB MU –2 TBD

T485CDAA 1.5 DFB SC 0 108400300

T485FDAA 1.5 DFB FC 0 108400995

T485WDAA 1.5 DFB LC 0 108825829

T485JDAA 1.5 DFB MU 0 TBD

T485CFAA 1.5 DFB SC –2 108400987

T483FFAA 1.5 DFB FC –2 108401001

T483WFAA 1.5 DFB LC –2 108825845

T483JFAA 1.5 DFB MU –2 TBD

Additional Information

For the latest specifications, additional product information, worldwide sales and distribution locations, and information about TriQuint:

Web: www.triquint.com Tel: (503) 615-9000

E-mail: info_opto@tqs.com Fax: (503) 615-8902

For technical questions and additional information on specific applications:

E-mail: info_opto@tqs.com

The information provided herein is believed to be reliable; TriQuint assumes no liability for inaccuracies or omissions. TriQuint assumes no responsibility for the use of this information, and all

such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are

implied or granted to any third party.

TriQuint does not authorize or warranty any TriQuint product for use in life-support devices and/or systems.

DS00-088-1 Revision 1.1, February, 2003

T48-Type 1300 nm and 1500 nm Data Sheet, Rev. 1

Uncooled 2.5 Gb/s Laser Transmitters February 2003