dtr-1250-sm2-lc OPLINK Communications Inc., dtr-1250-sm2-lc Datasheet

dtr-1250-sm2-lc

Manufacturer Part Number

dtr-1250-sm2-lc

Description

3.3v 2x10 Lc Connector Sff Gigabit Ethernet 1300 & 1550 Nm Laser Transceivers

Manufacturer

OPLINK Communications Inc.

Datasheet

1.DTR-1250-SM2-LC.pdf (5 pages)

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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

Absolute Maximum Ratings

OCP

Storage Temperature

Operating Temperature

Supply Voltage

Input Voltage

Output Current

Lead Soldering Temperature & Time

3.3V 2x10 LC connector SFF Gigabit Ethernet 1300 & 1550 nm

DTR-1250-SM2-LC & DTR-1250-SM2-LS

Parameter

"A" option

"B" option

Optical Communication Products, Inc.

Laser Transceivers

Symbol

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.

Features

Compliant with IEEE 802.3z Gigabit Ethernet

Excellent EMI & ESD protection

LV-TTL TX DISABLE input & RX SIGNAL

Distance options of 10 km, 25 km, 40 km and

Eye Safe (Class I Laser Safety)

Multi-sourced 20-pin (2x10) SFF (Small Form

Duplex LC optical connector interface

1000BASE-LX PMD specifications

70 km using DFB lasers also available

(optional extra EMI shield also available)

Factor) package style

interface (AC coupling option also available)

DETECT output

Single +3.3 V supply & LV-PECL DATA

Minimum

- 0.5

- 40

Maximum

+ 6.0

+ 85

+ 70

260°C, 10 sec

21737-0283, Rev.A

Units

°C

06-25-03

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