XSFF GPON OLT 2.5G1.25G

XSFF-GPON-OLT-2.5G1.25GFEATURESClass B+ Optical Line Terminal (OLT) for ITU-T G.984 Gigabit-capable PON 2.488 Gbps / 1490 nm Continuous-Mode Transmitter 1.244 Gbps / 1310 nm Burst-Mode Receiver with 2R Output Resetless BM Receiver Design BM RX with 32 Bits Packet-to-packet Guard Time for over 15dB Packet Optical Power Difference 0 to 70 °C Operating: LT-94B73B-P1G -20 to 85 °C Operating: LT-94B73B-P1-AG 2x5 SFF Package with SC/PC Pigtail Single +3.3 V Power Supply RoHS Compliant Transmitter: AC Coupling Input Receiver: DC Coupling Output LVTTL TX Shutdown Input LVTTL High-Speed Burst-mode RX Signal Detect Wave Solderable and Aqueous Washable Class 1 Laser International Safety Standard IEC-60825 Compliant DESCRIPTION LT-94B73B series is ITU-T G.984.2 Class B+ optical line terminal (OLT) for 2.488 Gbps/1490 nm in downstream and 1.244 Gbps/1310 nm in upstream. The transmitter section uses a multiple quantum well 1490 nm DFB laser and is a class 1 laser compliant according to International Safety Standard IEC-60825. The receiver section uses an integrated 1310 nm burst-mode detector preamplifier (IDP) mounted in an optical header and a burst-mode limiting post-amplifier IC. Unlike the conventional BM RX, the RX does not require reset pulse to receive optical data packets with different optical power. LVPECL interface is used for differential inputs and outputs. A LVTTL logic interface simplifies interface to external circuitry. LASER SAFETY This single mode transceiver is a Class 1 laser product. It complies with IEC-60825 and FDA 21 CFR 1040.10 and 1040.11. The transceiver must be operated within the specified temperature and voltage limits. The optical ports of the module shall be terminated with an optical connector or with a dust plug. ODER INFORMATION: P/No Class TX RX Temp o ( C) Package RoHS Compliant Type Speed (Gb/s) λ (nm) Power (dBm) Type Speed (Gb/s) λ (nm) Sens. (dBm) XSFF-GPON-OLT-2.5G1.25G-B B+ CNT 2.488 1490DFB 1.5/5 BM, 2R 1.244 1310 -8/-28 0/70 SFF 2X5 Yes XSFF-GPON-OLT-2.5G1.25G-BH B+ CNT 2.488 1490DFB 1.5/5 BM, 2R 1.244 1310 -8/-28 -20/85 SFF 2X5 Yes XSFF-GPON-OLT-2.5G1.25G-C C CNT 2.488 1490DFB 7/3 BM, 2R 1.244 1310 -8/-29 0/70 SFF 2X5 Yes NOTE: 1. SC/PC pigtail with fiber length 50 cm. 2. BM: Burst Mode; CNT: Continuous Mode; SFF: Small Form Factor Package. Absolute Maximum Ratings Min Max Unit Notes -40 85 °C 0 70 °C Air flow 1m/secc @>60 °C -20 85 °C Air flow 1m/secc @>60 °C -0.5 3.6 V RecommendedOperatingConditions Symbol Min Max Unit Unit/Notes Vcc 3.13 3.47 V V Topr 0 70 °C Air flow 1m/secc @>60 °C -20 85 °C Air flow 1m/secc @>60 °C ICC (TX+RX) 350 mA 1.Output power is power coupled into a 9/125 mm single mode fiber. 2. Sensitivity and saturation levels at BER 1E-10 for a 2 -1 @ER=10. 3. At least 30 dB optical isolation for the wavelength 1480 to 1500 nm. 4. No reset is needed. 5. The optical power difference between neighboring packets is up to 15 Db Note: Specifications subject to change without notice. The 50 +/- 3 cm long pigtail with a SC/PC connector is standard. If non-standard pigtail is required, please make a contact with Howfflink Technology Inc. Notes: 1. This figure describes the recommended circuit board layout for the SFF OLT Transceiver. 2. The hatched areas are keep-out areas reserved for housing standoff. No metal traces or ground connection in keep-out area. 3. The mounting studs should be solder to chassis ground for mechanical integrity.