Data Sheet
April 2002
Netlight® NLT25-15-RA 2.5 Gbits/s 1310 nm Laser Transceiver
with CDR for Intermediate Reach
Applications
I 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’ optics and is packaged in a nar-
Available in a small form-factor, metal package with LC recep-
row-width metal housing with an LC-duplex recepta-
tacle connector, the NLT25-15-RA transceiver is a high-perfor-
cle. The 20-pin package pinout conforms to a
multisource transceiver agreement.
mance, cost-effective, optical transceiver for SONET/SDH
applications.
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.
Features
I Multisource agreement compliant SFF package
I LC duplex receptacle
I Metal package for superior EMI performance
I Uncooled 1310 nm laser transmitter with automatic
output power control
I Transmitter disable input
I Wide dynamic range receiver with InGaAs PIN
photo detector
I Recovered clock outputs
I LVTTL signal detect output
I Low power dissipation
I Single 3.3 V power supply
I ac-coupled LVPECL/CML compatible data inputs
and CML compatible data outputs
I Operating temperature range of –40 °C to +85 °C
I Telecom reliability (GR-468-CORE RT)
I Wave solderable and aqueous wash compatible