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FWLF1631R23 Datasheet(PDF) 8 Page - Finisar Corporation. |
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FWLF1631R23 Datasheet(HTML) 8 Page - Finisar Corporation. |
8 / 10 page FWLF1631RXX DWDM SFP Preliminary Product Specification – November 2006 F i n i s a r © Finisar Corporation PRELIMINARY and Confidential Page 8 Rev B, November 2006 IX. Serial Communication Protocol All Finisar SFPs support the 2-wire serial communication protocol to provide module ID information as outlined in the SFP MSA 1. These SFPs use an Atmel AT24C01A 128 byte E 2PROM with an address of A0h. For details on interfacing with the E2PROM, see the Atmel data sheet titled “AT24C01A/02/04/08/16 2-Wire Serial CMOS E 2PROM.”3 Finisar SFPs also support diagnostic features as described in Finisar Applications Note AN- 2030 4 and SFF-84725, “Digital Diagnostic Monitoring Interface for Optical Transceivers”. A controller IC that monitors system parameters such as laser current, module temperature, transmitter power, and received power is accessible at address A2H. In addition, Finisar’s DWDM SFPs provide extended set of ID information and diagnostic features as described in the DWDM SFP MSA 6. I2C clock speed, digital diagnostic accuracy and digital diagnostic range can be found in the table below. Values in the table represent the worst-case values over temperature, voltage, and life. Parameter Symbol Min Typ Max Units Notes/Conditions I 2C Clock Speed 0 100,000 Hz Bus can be driven blind Accuracy Transceiver Case Temperature DDTemperature -10 +10 °C Measured on the top-side of the module case Transceiver Supply Voltage DDVoltage -3 +3 % Tx Bias Current DDBias -10 +10 % Tx Output Power DDTxPower -2 +2 dB Received Average Power DDRxPower -2 +2 dB Range Transceiver Case Temperature DDTemperature -40 85 °C Transceiver Supply Voltage DDVoltage 3.0 4.0 V Tx Bias Current DDBias 0 90 mA Tx Output Power DDTxPower -5 +10 dBm Received Average Power DDRxPower -30 -7 dBm |
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