Data Sheet
April 2002
Netlight
廬
NLT25-15-RA 2.5 Gbits/s 1310 nm Laser Transceiver
with CDR for Intermediate Reach
Applications
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SONET OC-48 IR-1, SDH S-16.1 applications
Description
The NLT25-15-RA transceiver is a high-speed, cost-
effective optical transceiver that is intended for
2.488 Gbits/s shelf-to-shelf optical interconnect appli-
cations, as well as SONET OC-48 IR-1 and
SDH S-16.1 applications. The transceiver features
the Agere Systems鈥?optics and is packaged in a nar-
row-width metal housing with an LC-duplex recepta-
cle. The 20-pin package pinout conforms to a
multisource transceiver agreement.
The transmitter features the ability to interface to
both LVPECL and CML differential logic level data
inputs via ac-coupled inputs. The transmitter also
features a LVTTL logic level disable input and laser
bias and backfacet monitor outputs. The receiver
features ac- coupled differential CML logic level data
outputs, an LVTTL logic level signal-detect output,
and direct access to the PIN-photodetector bias input
for photocurrent monitoring purposes.
Available in a small form-factor, metal package with LC recep-
tacle connector, the NLT25-15-RA transceiver is a high-perfor-
mance, cost-effective, optical transceiver for SONET/SDH
applications.
Features
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Multisource agreement compliant SFF package
LC duplex receptacle
Metal package for superior EMI performance
Uncooled 1310 nm laser transmitter with automatic
output power control
Transmitter disable input
Wide dynamic range receiver with InGaAs PIN
photo detector
Recovered clock outputs
LVTTL signal detect output
Low power dissipation
Single 3.3 V power supply
ac-coupled LVPECL/CML compatible data inputs
and CML compatible data outputs
Operating temperature range of 鈥?0
擄C
to +85
擄C
Telecom reliability (GR-468-CORE RT)
Wave solderable and aqueous wash compatible
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