FNF-LT11x Front Load Pluggable Optical Transceiver The FNF-LT11 multimode glass optical fiber transceivers provide low profile, cost effective solutions for Fast Ethernet multimode (up to 2.0 km) optical fiber data links with a duplex LC connector interface. These transceivers are fully compliant with the IEEE 802.3u Fast Ethernet standard but can be used for any other data communications purpose within their operating parameters. This transceiver consist of transmitter and receiver functions combined in a Low Profile module. The optical transmitter is a high output 1310 nm LED. The transmitter input lines are driven with differential LVPECL signals applied to the Transmit (TX+ and TX-) pins. These signals are internally converted to a suitable modulation current by a CMOS integrated circuit. The optical receivers consist of PIN and Preamplifier assemblies and CMOS limiting post-amplifier integrated circuits. Outputs from the receivers consist of differential CML data signals on the Receive (RX+ and RX-) pins and a single ended LVTTL loss of signal function on Loss of Signal (LOS) pin. The RX data is squelched (JAM) upon LOS Assert to prevent garbage data output when no optical signal is present Key Features & Benefits Fast Ethernet Applications, up to 2.0 km 3.3 V, 1310 nm, LED, Multimode Front load pluggable miniature transceiver MSA height, but half the footprint MSA compliant Digital Diagnostics Surface Mount I/O pins for high speed signal integrity Industrial Temp Range, Vibration tolerant design Individual (separate) +3.3 V power supply per port Industry standard duplex multimode LC receptacle Full compliance to IEEE 802.3u Fast Ethernet EN-60825 / IEC-825 / CDRH Class 1 Compliant 2 FNF-LT11x ORDERING INFORMATION F N F -LT11 H F = Front Load LT11 = MM N = No GND tabs F = Fast Ethernet H = No conf coat Low Rider 1310 nm M = Conf coat ABSOLUTE MAXIMUM RATINGS Absolute maximum limits mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods, provided each limiting parameter is in isolation and all other parameters have values within the performance specification. It should not be assumed that limiting values of more than one parameter can be applied to the product at the same time. PARAMETER SYMBOL MIN TYPICAL MAX UNIT Storage Temperature TS -55 +100 C 1 Lead Hand Soldering Temperature TSOLD +260 C 1 Lead Soldering Time t 10 Second SOLD Supply Voltage VCC -0.5 +4.5 V Data Input Voltage VI -0.5 VCC V Differential Input Voltage (p-p) VD 2.0 V Output Current I 50 mA O 1 The Front Load Pluggable Optical Transceiver is not soldered, rather it is the Cage and Connector that are soldered to the application card. Therefore, these Solder specifications apply only for the Cage and Connector RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN TYPICAL MAX UNIT Operating Temperature Limit TA -40 +85 C Supply Voltage V +3.135 +3.465 V CC Tx Common Mode Voltage V 2.0 V CM Tx Differential Input Voltage (p-p) VD 0.35 1.25 V Rx Data Output Load RL 50 W TRANSMITTER 2 PARAMETER SYMBOL MIN TYPICAL MAX UNIT 1 Optical Output Power P -20.0 -14.0 dBm O Optical Output Wavelength 1285 1310 1360 nm OUT Spectral Width (RMS) RMS 63 nm Spectral Width (FWHM) FWHM 175 nm Extinction Ratio ER 12 dB Supply Current I 120 160 mA CC Optical Rise/Fall Time (20% - 80%) tR,F 3.0 ns 1 -10 7 BER = 10 125 Mbps, PRBS 2 -1, NRZ, Compliant with FDDI PMD ISO / IEC 9314-3 and IEEE 802.3u testing with 62.5 MM fiber 2 VCC Tx = 3.15 3.45 V, TA = Operating temperature range +1 321 308 4100 cinch.com