LT-74E73E-PG Datasheet, PDF (1/5 Pages) Optoway Technology Inc – 3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX 2X5 SFF Package, GE-PON OLT Transceiver (IEEE 802.3ah-2004 1000BASE PX20)

Optoway
1
LT-74E73E-PG
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LT-74E73E-PG
(RoHS Compliant)
3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX
2X5 SFF Package, GE-PON OLT Transceiver (IEEE 802.3ah-2004 1000BASE PX20)
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FEATURES
DESCRIPTION
l Optical Line Terminal (OLT) for IEEE 802.3ah-2004
LT-74E73E is an optical transceiver for optical line terminal (OLT)
1000BASE-PX20
l 1-Fiber Bi-directional 1.25 Gbps WDM Transceiver for 20
for IEEE 802.3ah-2004 1000BASE-PX20 applications. The
LT-74E73E is high performance module for single fiber
km communication
l 1490 nm Continuous-Mode Transmitter
l 1310 nm Burst-Mode (BM) Receiver
l Resetless BM Receiver Design
l BM RX with Transceiver Settling Time less than 400 ns
l High Resistance of BM RX to DC Optical Background
l 0 to 70^oC Operating Temperature
l 2x5 SFF Package with SC/PC Pigtail
communications by using 1490 nm continuous-mode transmitter and
1310 nm high sensitivity burst-mode receiver with settling time less
than 400 ns. The transmitter section uses a 1490 nm DFB laser and is
a class 1 laser compliant according to International Safety Standard
IEC-60825. The receiver section uses an integrated 1310 nm
burst-mode Avalanche photodetector preamplifier mounted in an
optical header and a burst-mode limiting post-amplifier IC. Unlike
l Single +3.3 V Power Supply
the conventional BM RX, the RX does not requires reset pulse to
l RoHS Compliant
receive optical data packets with different optical power.
l Transmitter: AC Coupling Input
LVPECL interface is used for differential inputs and outputs. A
l Receiver: DC Coupling Output
LVTTL logic interface simplifies interface to external circuitry.
l LVPECL Differential Inputs and Outputs
l LVTTL TX Shutdown Input
LASER SAFETY
l LVTTL TX Laser Failure Alarm Output
l Wave Solderable and Aqueous Washable
l Class 1 Laser International Safety Standard IEC-60825
This single mode transceiver is a Class 1 laser product. It
complies with IEC-60825 and FDA 21 CFR 1040.10 and
1040.11. The transceiver must be operated within the
Compliant
specified temperature and voltage limits. The optical ports of
APPLICATIONS
l Gigabit Ethernet PON System
the module shall be terminated with an optical connector or
with a dust plug.
ORDER INFORMATION
P/No
Class
TX
RX
Temp Package RoHS
Type Speed λ (nm) Power Type Speed λ (nm) Sens. (^oC)
Compliant
(Gb/s)
(dBm)
(Gb/s)
(dBm)
LT-74E73E-PG
PX20 CNT 1.25 1490 DFB 7 / 2 BM, 2R 1.25 1310 -8 / -26 0 / 70 SFF 2X5 Pig. Yes
NOTE: 1. LT-XXXXXX-PWXG, SC/PC pigtail with fiber length 50 cm.
2. BM: Burst Mode; CNT: Continuous Mode; SFF: Small Form Factor Package.
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OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: [phone]
Fax: [phone]
E-mail: [e-mail] http: // www.optoway.com.tw 3/1/2006 V1.0