Data Sheet
January 2000
1345-Type Receiver with
Clock Recovery and Data Retiming
Applications
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Telecommunications:
— Inter- and intraoffice SONET/ITU-T SDH
— Subscriber loop
— Metropolitan area networks
High-speed data communications
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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.
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
Telcordia Technologies
GR-253-CORE
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.
Features
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Backward compatible with 1330 family
Space-saving, self-contained, 20-pin plastic DIP
Silicon based ICs
Single 5 V power supply operation including
photocurrent monitor capability
Exceeds all SONET (GR-253-CORE) and ITU-T
G.958 jitter requirements
Clocked decision circuit
Regenerated differential clock signal
Wide dynamic range
Qualified to meet the intent of
Telcordia Technolo-
gies
™ reliability practices
Operates at data rates of 155 Mbits/s or
622 Mbits/s
Positive ECL (PECL) data outputs
CMOS (TTL) link-status flag output
Operation at 1.3
µm
or 1.55
µm
wavelengths
Operating temperature range of –40 °C to +85 °C
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AGERE [ AGERE SYSTEMS ]
