DTR-1250-SM2-LC Datasheet, PDF (1/5 Pages) OPLINK Communications Inc. – Laser Transceivers

OCP
DTR-1250-SM2-LC & DTR-1250-SM2-LS
3.3V 2x10 LC connector SFF Gigabit Ethernet 1300 & 1550 nm
Laser Transceivers
Features
Description
The DTR-1250-SM2-LC and DTR-1250-SM2-LS fiber
optic transceivers offer a simple and convenient way to
interface 1000BASE-LX Gigabit Ethernet boards running
at 1.25 Gbaud to single mode and multimode fiber optic
cables. In addition to option “L2” for the 5 km distance
specified in IEEE 802.3z standard, five other options with
longer distance capability with single mode fibers are
offered. In option “L1”, a 1300 nm Fabry Perot laser with
higher power and narrower spectral width and center
wavelength range is used to increase the distance to at
least 10 km. In option “L0”, an even higher power 1300
nm Fabry Perot laser is used to offer more optical power
budget. In option “H3”, a 1300 nm DFB laser and a high
sensitivity receiver are used to increase the distance to over
25 km or 30 km (assuming worst case fiber loss of 0.4
dB/km and 0.35 dB/km respectively). In option “H5”, a
1550 nm DFB laser and a high sensitivity receiver are used
to increase the distance to over 35 km or 40 km (assuming
worst case fiber loss of 0.3 and 0.25 dB/km respectively).
Finally, in option “H7”, a high power 1550 nm DFB laser
Compliant with IEEE 802.3z Gigabit Ethernet
1000BASE-LX PMD specifications
Distance options of 10 km, 25 km, 40 km and
70 km using DFB lasers also available
Eye Safe (Class I Laser Safety)
Excellent EMI & ESD protection
(optional extra EMI shield also available)
Multi-sourced 20-pin (2x10) SFF (Small Form
Factor) package style
Duplex LC optical connector interface
Single +3.3 V supply & LV-PECL DATA
interface (AC coupling option also available)
LV-TTL TX DISABLE input & RX SIGNAL
DETECT output
and an ultra high sensitivity receiver are used to increase
the distance to 70 km (assuming fiber loss of 0.2 to 0.25
dB/km). All modules satisfy Class I Laser Safety
requirements in accordance with the US FDA/CDRH and
international IEC-825 standards.
The transmit and receive functions are contained in a narrow
width two-row, 20-pin (2x10) package with a Duplex LC
connector interface. The receptacle fits into an RJ-45 form
factor outline. The 20-pin configuration is in conformance
to a Small Form Factor (SFF) multisource agreement.
The transmitter and receiver DATA interface are differential
direct-coupled LV-PECL. An alternate version with AC
coupling interface is also available. An LV-TTL Transmitter
Disable control input is provided. The receiver Signal Detect
output interface is also LV-TTL.
The transceiver operates from a single +3.3V power supply
over an operating temperature range of 0°C to +70°C and
-40°C to +85°C. The package is made of either conductive
plastic or metal for excellent EMI shielding.
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
Storage Temperature
Operating Temperature
"A" option
"B" option
T_st
- 40
+ 85
°C
- 40
+ 85
T_op
0
°C
+ 70
Supply Voltage
Input Voltage
Output Current
Lead Soldering Temperature & Time
V_CC
- 0.5
V_in
- 0.5
I_O
-
-
-
Optical Communication Products, Inc.
1
+ 6.0
V
V_CC
V
50
mA
260°C, 10 sec
21737-0283, Rev.A
06-25-03