INFORMATION

Features

u  Single fiber bi-directional
data links asymmetric TX 2500Mbps/RX1250Mbps application

u  1490nm continuous-mode DFB
laser transmitter and 1310nm burst-mode APD-TIA receiver

u  Small Form Factor Pluggable
package with SC/UPC Connector

u  Single 3.3V power supply

u  Digital diagnostic
monitoring interface

u  Low EMI and excellent ESD
protection

u  RoHS6 Compliance

u  LVPECL compatible data
input/output interface

u  Class I laser safety
standard IEC-60825 compliant

u  LVTTL fast receiver Signal
Detect (SD) indication response

u  LVTTL transmitter disable
control and transmitter laser fault alarm

u  Digital
burst RSSI function to monitor the input optical power level

Applications

u  Gigabit Ethernet Passive
Optical Networks (GPON)

u  Gigabit-Capable Passive
Optical Networks Class C+++ 60km 17~32dB attenuation range

Standards

u  Complies with SFP
Multi-Source Agreement (MSA) SFF-8074i

u  Complies with IEEE
802.3ah 

u  Complies with FCC 47 CFR
Part 15, Class B

u  Complies with FDA 21 CFR
1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50,
dated June 24, 2007

u  Complies with SFF-8472

u  Compatible with
TR-NWT-000870 4.1 ESD sensitivity classification Class2.

u  Compatible
with Telcordia GR-468-CORE

Specification

 Note 1: PRBS 2⁷-1@1.25Gbps, transmitter is
operating, BER ≤1×10^-10

Figure 1 RSSI TIMING SEQUENCE 

Digital Diagnostic Monitoring Information

Note: The digital
diagnostic monitoring interface defines 256-byte memory map in EEPROM, which
makes use of the 8 bit address 1010001X (A2h). Please refer to the SFF-8472 Rev
10.2 for the detail information.

Pin
definition

Typical application
Circuit

Figure
2 Typical Interface Circuit

EEPROM Memory Map

Figure
5 EEPROM Memory Map Specific Data Field Descriptions

EEPROM Serial ID
Memory Contents

The optical transceiver contains an EEPROM. It provides
access to sophisticated identification information that describes the transceiver’s
capabilities, standard interfaces, manufacturer, and other information. When
the serial protocol is activated, the host generates the serial clock signal
(SCL, Mod Def 1). The positive edge clocks data into those segments of the
EEPROM that are not writing protected within the SFP transceiver. The negative
edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def
2) is bi-directional for serial data transfer. The host uses SDA in conjunction
with SCL to mark the start and end of serial protocol activation. The memories
are organized as a series of 8-bit data words that can be addressed
individually or sequentially.

The Module provides diagnostic information about the
present operating conditions. The transceiver generates this diagnostic data by
digitization of internal analog signals. Calibration and alarm/warning
threshold data is written during device manufacture. Received power monitoring,
transmitted power monitoring, bias current monitoring, supply voltage
monitoring and temperature monitoring all are implemented. The diagnostic data
are raw A/D values and must be converted to real world units using calibration
constants stored in EEPROM locations 56 – 95 at wire serial bus address A2h.
The digital diagnostic memory map specific data fields define as following.

EEPROM Serial ID
Memory Contents (2-Wire Address A0h)

Package Outline

(unit:mm)