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T923CFAA

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描述：T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter

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T923CFAA 概述

T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter T92型10 Gb / s的1300 nm的非制冷DFB激光发射器

T923CFAA 数据手册

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Advance Data Sheet

March 2001

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

■ Laser degrade alarm

■ Clock-select input (next generation)

■ Transmitter disable input

■ SC, FC-PC, and LC optical connector options

Applications

■ Telecommunications:

— SONET/SDH

— Subscriber loop

— Metropolitan area networks

■ High-speed data communications

Offering SONET/SDH compatibility, the T92-Type Uncooled

Laser Transmitter is manufactured in a 24-pin DIP assembly

with a single-mode fiber pigtail.

Description

The T92-Type 10 Gbits/s laser transmitters are

designed for use in transmission systems and high-

speed data communication applications. The trans-

mitter operates at the SONET OC-192 rate, as well

as, the ITU-T SDH rate of STM-64.

Features

■ Multisource compliant

■ Data rates to 10 Gbits/s

The transmitters meet all present Telcordia Technolo-

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

G.691 recommendations (see footnote 7, p.4). The

transmitters are also ideally suited for extended dis-

tance data and networking applications.

■ SONET and ITU-T compliant at OC-192 and

STM-64 (see footnote 7 on page 4)

■ Uncooled, field-proven InGaAsP MQW laser

■ 1300 nm DFB

Manufactured in a 24-pin DIP assembly, the transmit-

ter uses an hermetic MQW isolated 1300 nm DFB

laser, an InGaAs PIN photodiode back-facet monitor

and a GaAs laser driver IC. The transmitter requires

a single power supply (–5.2 V or +5.0 V). Clocked

operation can be enabled for those applications

where jitter is critical.

■ Clocked or nonclocked operation with single-ended

or differential inputs

■ 50 Ω ac-coupled 500 mVp-p—1000 mVp-p single-

ended data and clock inputs

■ Operation from single –5.2 V or +5.0 V power sup-

ply

Pin information is listed in Table 1.

■ Low profile, 24-pin PWB assembly

■ Automatic optical power control

■ Wide operating case temperature range: 0 °C to

70 °C

* Telcordia Technologies is a trademark of Telcordia Technologies,

Inc.

■ Laser bias monitor output

■ Normalized laser back-facet monitor output

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Advance Data Sheet

March 2001

Bias Monitor Output

Description (continued)

This is an optional analog output voltage that indicates

the bias current being supplied to the laser. It is refer-

enced to VEE. The conversion for this monitor output is

20 mV for every 1 mA of bias current to the laser. For

example, a 400 mV output above VEE would indicate

20 mA of bias current to the laser.

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 a maximum temperature of

250 °C for 10 seconds.

Table 1. Pin Descriptions

Pin Number

Name

V^EE

Back-facet Monitor¹

Bias Monitor

Tx Enable

Clock Select

Ground

Temperature Monitor²

Laser Degrade Alarm

NUC

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).

NUC

NUC³

V^EE

V^CC

NUC³

Laser Degrade-mode Alarm

Ground

DATA⁴

An output of the transmitter that indicates when the

laser bias has reached its end-of-life condition. The

transmitter will still function, but may not meet all speci-

fications. The transmitter should be replaced when this

alarm is active (active low). Specifically, this alarm indi-

cates that the bias of the laser has changed more than

50% from its original value.

Ground

DATA⁴

Ground

CLOCK⁴

Ground

CLOCK⁴

Ground

Back-facet Monitor Output

V^CC

This is an analog output that indicates whether the

transmitter has the correct optically generated back-

facet current. It may be used for alarm purposes. It is

referenced to VEE. Under normal operating conditions,

this monitor will output a voltage that is nominally

500 mV above VEE. When the optical output power of

the transmitter increases or decreases, this voltage will

move proportionately.

1. Laser back-facet function is a customer-use option that is not

required for normal operations of the transmitter and is normally

used during manufacture and for diagnostics.

2. Laser temperature (°C) = (V^TEMP– 0.5 V)/0.01 V, where V^TEMPis

the temperature monitor voltage.

3. This pin can be tied to ground.

4. For single-ended operation, data signal must be on pin 16, and

DATA (pin 18) must 50 Ω terminated to ground; for single-ended

clocked operation, clock signal must be on pin 20, and CLOCK (pin

22) must be 50 Ω terminated to ground.

Agere Systems Inc.

Advance Data Sheet

March 2001

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

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.

Parameter

Symbol

V_CC

T^C

Min

Max

5.5

Unit

Supply Voltage

—

Operating Case Temperature Range

Storage Case Temperature Range

Lead Soldering Temperature/Time

Relative Humidity (noncondensing)

Minimum Fiber-Bend Radius

°C

T^stg

—

–40

—

°C

250/10

°C/s

—

1.00 (25.4)

—

in. (mm)

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.)

Table 2. Electrical Characteristics

Parameter

dc Power Supply Voltage¹

Symbol

Min

Typ

Max

Unit

V^EE

–5.5/+4.75 –5.2/+5.0 –4.9/+5.25

dc Power Supply Current Drain

Input Data/Clock Voltage: ^{2, 3}Single-ended Input

—

250

700

400

V^IN

500

1000

mVp-p

Clocked/Nonclocked Select Voltage:⁴

Clocked Operation

Nonclocked Operation

V^SEL_CLK

V^{SEL CLK}

VEE

VCC – 2.0

—

VEE + 0.8

V^CC

Clock/Data Input Impedance

R^IN

S11

—

–10

Ω

Clock/Data RF Return Loss (50 kHz to 10 Ghz)

Clock/Data Input Skew⁵

Transmitter Disable Voltage⁶

dc^SKEW

V^DIS

–25

VCC – 2.0

VEE

—

V^CC

Transmitter Enable Voltage

V^EN

—

VEE + 0.8

VCC

Degrade Mode Alarm Voltage–Normal

Degrade Mode Alarm Voltage–Alarmed⁷

V^NORMAL

V^ALARMED

V^B

VCC – 2.0

VEE

—

VEE + 0.8

2400

540

Laser Bias Voltage⁸

Back-facet Monitor Voltage (50% duty cycle)⁹

500

V^BF

460

1. With V^EEconnected to –5.2 V, V^CCmust be at 0 V; With V^CCconnected to +5.0V, V^EEmust be at 0 V.

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

3. Single-ended or differential operation may be used. If the inputs are driven single-ended, the unused inputs (Clock and Data) must be 50 Ω ter-

minated to ground.

4. Clocked operation is normally enabled and only requires an external voltage to disable. For nonclocked operation, pin 5 must be tied to V^CC.

5. With clocked operation, the optical output changes state with the rising edge of the input clock signal. The skew is measured with the rising

edge of the clock centered in the middle of the data eye.

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

7. This alarm will go active when the bias current to the laser has increased 50% or more from its beginning-of-life (BOL) value.

8. This voltage is measured from Pin 3 to V^EEand is converted to laser bias current with the ratio of 20 mV/mA.

9. This voltage is measured from Pin 2 to V^EE.

Agere Systems Inc.

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Advance Data Sheet

March 2001

Characteristics (continued)

Table 3. Optical Characteristics

Parameter

Average Power Output, T923xFAA¹

Center Wavelength Range, T923xFAA

Spectral Width²

Symbol

P^O

Min

–6

Typ

Max

–1

1330

Unit

dBm

–2

λ^C

1290

—

∆λ20

∆λ/∆^T

SMSR

—

Wavelength Shift with Temperature

Side-mode Suppression Ratio ³

Dispersion Penalty (D = 12 km, max.)

Extinction Ratio⁴

—

0.1

—

nm/°C

—

r^e

—

Eye Mask of Optical Output ^{5, 6, 7}

—

See Note 7.

—

1. Output power definitions and measurements per proposals to the ITU-T Recommendation G.691.

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

3. Ratio of the peak output power in the dominant longitudinal mode to the power in the most significant side mode under fully modulated condi-

tions.

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.691, Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy.

7. The 10 Gbits/s mask has not been currently agreed to by the standards committee. Proposal is to use the 2.5 Gbits/s SONET eye mask test

scaled to 10 Gbits/s. The inner mask will be met, however, the outer mask will not be met.

Agere Systems Inc.

Advance Data Sheet

March 2001

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Outline Drawings

Dimensions are in inches and (millimeters).

2.015

(51.18)

1.055

(26.80)

0.260

(6.60)

1.450

(36.83)

0.392

(9.96)

0.015

(0.38)

0.100

(2.54)

0.018

(0.46)

0.125

(3.18)

1.100

(27.94)

0.720

(18.29)

1.000

(25.40)

1^-1-²1⁵2⁶⁽5^F)6(F)

1-1256(F)

Agere Systems Inc.

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Advance Data Sheet

March 2001

Qualification and Reliability

To help ensure high product reliability and customer satisfaction, Agere Systems is committed to an intensive qual-

ity program that starts in the design phase and proceeds through the manufacturing process. Optoelectronics mod-

ules are qualified to Agere Systems 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 Bellcore reliability practices TR-NWT-000468 and TA-TSY-000983. In addition, the Agere Systems

Technologies Microelectronics Group Optoelectronics design, development, and manufacturing facility has been

certified to be in full compliance with the latest ISO* 9001 Quality System Standards.

Laser Safety Information

Class I Laser Product

All versions of the T92-type transmitters are classified as Class I laser products per FDA/CDRH, 21 CFR 1040

Laser Safety requirements. The transmitters are classified with the FDA under accession number 8720009. All ver-

sions are classified as Class I laser products per IEC^†60825-1:1993.

This product complies with 21 CFR 1040.10 and 1040.11.

Wavelength = 1.5 µm

Maximum power = 10 mW

Connector Options

The standard optical fiber pigtail is 8 µm core single-mode fiber having a 0.036 in. (914 mm) diameter tight-buffered

outer-jacket. The standard length is 39 in. ± 4 in. (1 m ± 10 cm) and can be terminated with an SC, FC-PC, or LC

optical connector.

Product is not shipped with power supply.

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

hazardous laser radiation exposure.

NOTICE

Unterminated optical connectors can emit laser radiation.

Do not view with optical instruments.

* ISO is a registered trademark of The International Organization for Standardization.

†IEC is a registered trademark of The International Electrotechnical Commission.

Agere Systems Inc.

Advance Data Sheet

March 2001

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Ordering Information

Table 4. Ordering Information

Product Code

Connector

Comcode

T923CFAA

T923FFAA

T923WFAA

FC-PC

108749748

108749755

108749763

Ordering Code Definitions

ORDER CODE:T923

X XX

Laser Type:

3 = 1.3 µm DFB

Customer Options:

AA—ZZ

Typical Power:

F = –2 dBm

Optical Connector:

C = SC

F = FC-PC

W = LC

Table 5. Related Product Information

Product Code

Description

Document Number

DS00-261OPTO

R192-Type 10 Gbits/s

Optical Receiver

10 Gbits/s

Optical Receiver

Agere Systems Inc.

T92-Type 10 Gbits/s 1300 nm

Uncooled DFB Laser Transmitter

Advance Data Sheet

March 2001

For additional information, contact your Agere Systems Account Manager or the following:

INTERNET:

E-MAIL:

http://www.agere.com

docmaster@micro.lucent.com

N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286

1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)

ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256

Tel. (65) 778 8833, FAX (65) 777 7495

CHINA:

Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC

Tel. (86) 21 50471212, FAX (86) 21 50472266

JAPAN:

Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan

Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700

EUROPE:

Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148

Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)

Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights

under any patent accompany the sale of any such product(s) or information.

March 2001

DS01-085OPTO

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