Optical Transceiver SFP 1.25G <2KM 850nm LC

Product Specification Sheet

OLSP8512L-C(D)S5

RoHS Compliant 1.25Gbps 850nm 550M Multimode SFP Optical Transceiver

PRODUCT FEATURES

● Transceiver unit with independent

● VCSEL laser transmitter and PIN photo-detector

● Up to 1.25Gbps data rate operation

● Up to 550M transmission distance at 1.25Gbps

● Standard serial ID information compliant with SFP MSA

● SFP MSA package with duplex LC connector

● Digital Diagnostic Monitor Interface

● Very low EMI and excellent ESD protection

● +3.3V single power supply

● RoHS compliant

●Case operating temperature

Commercial: 0°C to +70°C

Extended: -10°C to +80°C

Industrial: -40°C to +85°C

APPLICATIONS

 Switch/Router

 SAN/Server

 Other optical transmission systems

STANDARD

● SFP MSA (Version Sept.14 2000) compliant

● SFF-8472 (Rev 9.3, Aug. 2002) Digital Diagnostic Monitoring Interface for Optical Transceivers compliant

● IEEE 802.3z compliant

● ANSI specifications for Fiber Channel compliant

● Telcordia GR-468-CORE compliant

Description

OlinkPhotonics 1.25Gbps 850nm 550M optical transceivers is designed for GE/1 x FC optical interface for data communications with multi mode fiber (MMF). It operates at 1.25Gbps for GE. The transceiver design is optimized for high performance and cost effective to supply customers the best solutions for datacom applications.

FUNCTIONAL DIAGRAM

Ordering information

ABSOLUTE MAXIMUM RATINGS

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the module.

GERERAL OPERATING CHARACTERISTICS

ELECTRICAL INPUT/OUTPUT CHARACTERISTICS

 Transmitter

 Receiver

Note 1) TD+/- are internally AC coupled with 100Ω differential termination inside the module.

Note 2) Tx Fault and Rx LOS are open collector outputs, which should be pulled up with 4.7k to 10kΩ resistors on the host board. Pull up voltage between 2.0V and Vcc+0.3V.

Note 3) RD+/- outputs are internally AC coupled, and should be terminated with 100Ω (differential) at the user SERDES.

OPTICAL CHARACTERISTICS

 Transmitter

 Receiver

Note 1) Measured at 2488 Mb/s with PRBS 2²³ – 1 NRZ test pattern.

Note 2) Meet the specified maximum output jitter requirements if the specified maximum input jitter is present.

Note 3) Measured at 2488 Mb/s with PRBS 2²³ – 1 NRZ test pattern for BER < 1x10^-10

Pin Definitions and Functions

Note 1) When high, this output indicates a laser fault of some kind. Low indicates normal operation. And should be pulled up with a 4.7 – 10KΩ resistor on the host board.

Note 2) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 – 10KΩ resistor. Its states are:

Low (0 – 0.8V): Transmitter on (>0.8, < 2.0V): Undefined

High (2.0V~Vcc+0.3V): Transmitter Disabled Open: Transmitter Disabled

Note 3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩ resistor on the host board. The pull-up voltage shall be between 2.0V~Vcc+0.3V.

Mod-Def 0 has been grounded by the module to indicate that the module is present

Mod-Def 1 is the clock line of two wire serial interface for serial ID

Mod-Def 2 is the data line of two wire serial interface for serial ID

Note 4) When high, this output indicates loss of signal (LOS). Low indicates normal operation.

Note 5) RD+/-: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board.

Note 6) TD+/-: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board.

TYPICAL INTERFACE CIRCUIT

Recommended power supply filter

Note: Inductors with DC resistance of less than 1Ω should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value.

PACKAGE DIMENSIONS