PRELIMINARY DATA SHEET NEC's 1550 nm InGaAsP MQW-DFB TOSA FOR LONG HAUL NX8511UD 2.5 Gb/s APPLICATIONS FEATURES • PEAK EMISSION WAVELENGTH: λp = 1 550 nm • OPTICAL OUTPUT POWER: Pf = 2.0 mW • WIDE OPERATING TEMPERATURE RANGE: TC = −20 to +85°C • SIDE MODE SUPPRESSION RATIO: SMSR = 40 dB • INGAAS MONITOR PIN-PD • INTERNAL OPTICAL ISOLATOR • BASED ON TELCORDIA RELIABILITY 5.0 mm DESCRIPTION NEC's NX8511UD is a 1 550 nm Multiple Quantum Well (MQW) structured Distributed Feed-Back (DFB) laser diode TOSA (transmitter optical sub-assembly) with InGaAs monitor PIN-PD in a receptacle type package designed for SFF/SFP transceiver with LC duplex receptacle. This device is ideal for Synchronous Digital Hierarchy (SDH) system, long haul STM-16 (L-16.2), ITU-T recommendations, and SONET OC-48 (LR-2). California Eastern Laboratories NX8511UD PACKAGE DIMENSIONS (UNIT : mm) φ 4.75±0.1 φ 3.4±0.03 BOTTOM VIEW 1 4 2 3 OPTICAL REFERENCE PLANE 0.55±0.05 4.045±0.05 (2.55) 1.1±0.05 (1.1) 6.99±0.2 12.0 MAX. φ 2.92+0.05 -0.17 PIN CONNECTIONS 1.0 1 (CASE) 6.5±0.5 LD 2 4 4- φ 0.3 PD φ 1.43 P.C.D φ 3.8 ORDERING INFORMATION PART NUMBER NX8511UD PACKAGE PIN CONNECTIONS φ 3.8 mm TOSA 1 LD 2 4 PD 3 3 NX8511UD ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Optical Output Power from Fiber Pf 5.0 mW Forward Current of LD IF 150 mA Reverse Voltage of LD VR 2.0 V Forward Current of PD IF 2.0 mA Reverse Voltage of PD VR 15 V Operating Case Temperature TC −20 to +85 °C Storage Temperature Tstg −40 to +85 °C Lead Soldering Temperature Tsld 350 (3 sec.) °C Relative Humidity (noncondensing) RH 85 % ELECTRO-OPTICAL CHARACTERISTICS (TC = −20 to +85°C, unless otherwise speciÞed) PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Optical Output Power from Fiber Pf CW 2.0 Operating Voltage Vop Pf = 2.0 mW 1.1 1.6 V Threshold Current Ith TC = 25°C 10 20 mA mW 50 Threshold Output Power Pth IF = Ith Differential EfÞciency ηd Pf = 2.0 mW, TC = 25°C Pf = 2.0 mW 0.04 Peak Emission Wavelength λp CW, Pf = 2.0 mW 1 530 1 550 30 40 Side Mode Suppression Ratio SMSR Pf = 2.0 mW 100 0.07 0.1 μW W/A 1 570 nm dB Rise Time tr 20-80%, Ppk = 2.0 mW, IF = Ith 100 ps Fall Time tf 80-20%, Ppk = 2.0 mW, IF = Ith 150 ps Monitor Current Im VR = 1.5 V, Pf = 1.0 mW 500 1 000 μA Monitor Dark Current ID VR = 1.5 V, TC = 25°C 0.1 50 nA VR = 1.5 V 10 500 100 Tracking Error γ Im = const. −1.0 1.0 dB Connector Repeatability − With master pigtail −1.0 1.0 dB Life Support Applications These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and agree to fully indemnify CEL for all damages resulting from such improper use or sale. 05/03/2004 A Business Partner of NEC Compound Semiconductor Devices, Ltd.