1345-Type Receiver with

Clock Recovery and Data Retiming

Data Sheet

January 2000

Operating at 1.3

µm or 1.55 µm wavelengths and at

155 Mbits/s or 622 Mbits/s, the versatile 1345-Type Receiver is

manufactured in a 20-pin, plastic DIP with a multimode fiber

pigtail.

Features

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Backward compatible with 1330 family

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Space-saving, self-contained, 20-pin plastic DIP

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Silicon based ICs

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Single 5 V power supply operation including

photocurrent monitor capability

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Exceeds all SONET (GR-253-CORE) and ITU-T

G.958 jitter requirements

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Clocked decision circuit

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Regenerated differential clock signal

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Wide dynamic range

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Qualified to meet the intent of

Telcordia Technolo-

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Operates at data rates of 155 Mbits/s or

622 Mbits/s

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Positive ECL (PECL) data outputs

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CMOS (TTL) link-status flag output

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Operation at 1.3

µm or 1.55 µm wavelengths

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Operating temperature range of –40 °C to +85 °C

Applications

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Telecommunications:

— Inter- and intraoffice SONET/ITU-T SDH

— Subscriber loop

— Metropolitan area networks

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High-speed data communications

Description

The 1345-Type fiber-optic receiver is designed for

use in transmission systems or medium- to high-

speed data communication applications. Used in

intermediate- and long-reach applications, the

receiver operates at the SONET OC-3 or OC-12 data

rate as well as the ITU-T synchronous digital hierar-

chy (SDH) rate of STM-1 or STM-4, depending on

the receiver model chosen. The receiver meets all

present

requirements, the current ANSI T1X1.5 intraoffice

specifications, and the ITU-T G.957 and G.958 rec-

ommendations. Compact packaging, a high level of

integration, and a wide dynamic range make these

receivers ideal for data communications.

Manufactured in a 20-pin DIP, the receiver consists of

a planar InGaAs PIN photodetector, a silicon pream-

plifier, a silicon bipolar limiting amplifier that converts

the small signal to ECL levels, a timing recovery unit

to recover the clock, and a silicon bipolar decision cir-

cuit.