C486FD38 datasheet, PDF - EEWORLD Datasheet

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C486FD38: DescriptionFiber Optic Device,; CategoryWireless rf/communication Optical fiber; File Size713KB，25 Pages; ManufacturerBroadcom

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C486FD38 Overview

Fiber Optic Device,

C486FD38 Parametric

Parameter Name	Attribute value
Maker	Broadcom
Reach Compliance Code	compliant

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Data Sheet

October 2005

C482, C484, and C486 (C48-Type)

2.5 Gb/s Cooled Laser Transmitters

Wide operating case temperature range,

–15 °C to +70 °C

Laser bias monitor alarm/laser degrade alarm

Laser back-facet monitor output

Transmitter-enable input

FC/PC, SC/PC, LU or MU connectors

Applications

Telecommunications:

— SONET/SDH SR/IR/LR

— Subscriber loop

— Metropolitan area networks

High-speed data communications

Offering multiple output power options and SONET/SDH com-

patibility, the C48-Type 2.5 Gb/s Cooled Laser Transmitters are

manufactured in a 24-pin plastic DIP with a single-mode fiber

pigtail.

Description

The C48-type 2.5 Gb/s cooled 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 device supports two

wavelengths. The second wavelength is selectable via

pin 10.

The transmitters meet all present

Telcordia Technolo-

gies

GR-253-CORE 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 DIP, the transmitter incorpo-

rates a hermetic multiquantum well (MQW) isolated

1550 nm digital distributed feedback (DFB) laser

(D2526 versions), an InGaAs PIN photodiode back-

facet monitor, and a GaAs laser driver IC. The unit

uses two power supplies. The laser transmitter

requires 5 V, and the thermoelectric cooler (TEC)

requires 3.3 V. The clock may be enabled for those

applications where jitter is critical.

Pin information is listed in Table 1.

Features

Data rates to 2.5 Gb/s

Two-channel selectable at 100 GHz spacing

SONET and ITU-T compliant at OC-48 and

STM-16

Cooled, InGaAsP MQW-DFB laser

Wavelength range, 1528.77 nm—1563.86 nm

User-selectable wavelengths

Clocked or nonclocked operation with single-ended

inputs; clocked operation with differential input

Ω

ac-coupled PECL compatible data and clock

inputs

Operation from 3.3 V and 5 V power supplies

Low-profile, 24-pin package

Automatic optical power control

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