FTLF1436W5BTV

Product Specification 25G Ethernet RoHS Compliant Long Wavelength SFP28 Transceiver FTLF1436W5BTV PRODUCT FEATURES • Hot-pluggable SFP28 footprint • Duplex LC connector • Dual-rate: 25.78Gb/s and 10.3125Gb/s • -40°C to 85°C operating temperature range • 1.2W maximum power consumption with established link • Up to 10 km on 9/125µm SMF • 1310nm DFB laser transmitter • Built-in digital diagnostic functions • RoHS compliant • Metal enclosure, for lower EMI • Supports optical and electrical loopback functions • APPLICATIONS 25GBASE-LR Single 3.3V power supply eCPRI & CPRI Finisar’s FTLF1436W5BTV SFP28 transceivers are designed for use in Ethernet links up to 25.78 Gb/s data rate and up to 10 km link length. They are compliant SFF-8472 Rev 12.2b and IEEE 802.3cc, and compatible with SFF-8432a and applicable portions of SFF8431 Rev. 3.0c. The product is RoHS compliant and lead-free per Directive 2011/96/EUd. See Finisar Application Note AN-2038 for more details. PRODUCT SELECTION FTLF1436W5BTV  Finisar Corporation June 2019 Rev A0 Finisar Confidential Page 1 FTLF1436W5BTV Product Specification I. Pin Descriptions Pin 1 2 3 4 5 6 7 Symbol VEET TFAULT TDIS SDA SCA MOD_ABS RS0 8 9 LOS RS1 10 11 12 13 14 15 16 17 18 19 20 VEER VEER RDRD+ VEER VCCR VCCT VEET TD+ TDVEET Name/Description Transmitter Ground (Common with Receiver Ground) Transmitter Fault. Transmitter Disable. Laser output disabled on high or open. 2-wire Serial Interface Data Line (MOD-DEF2) 2-wire Serial Interface Clock (MOD-DEF1) Module Absent, connected to VEET or VEER Rx Rate Select: Open or Low = 10.3 Gb/s or 9.8Gb/s (Low Bandwidth) High = 25.78 Gb/s or 24.33Gb/s (High Bandwidth) Loss of Signal indication. Logic 0 indicates normal operation. Tx Rate Select: Open or Low = 10.3 Gb/s or 9.8Gb/s (Low Bandwidth) High = 25.78 Gb/s or 24.33Gb/s (High Bandwidth) Receiver Ground (Common with Transmitter Ground) Receiver Ground (Common with Transmitter Ground) Receiver Inverted DATA out. AC Coupled Receiver Non-inverted DATA out. AC Coupled Receiver Ground (Common with Transmitter Ground) Receiver Power Supply Transmitter Power Supply Transmitter Ground (Common with Receiver Ground) Transmitter Non-Inverted DATA in. AC Coupled. Transmitter Inverted DATA in. AC Coupled. Transmitter Ground (Common with Receiver Ground) Ref. 1 2 3 4 4 4 5 6 5 1 1 1 1 1 Notes: 1. Circuit ground is internally isolated from chassis ground. 2. TFAULT is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to 2.0V or open, enabled on TDIS