MAX3905: Output Current Calculator for the MAX3905

要約

The MAX3905 150Mbps VCSEL driver has several control inputs to compensate for VCSEL slope efficiency and threshold current variation over temperature. If the temperature-dependent properties of the VCSEL are known, the attached spreadsheet can be used to program the correct combination of settings on the MAX3905 to achieve near-constant average power and extinction ratio. The spreadsheet contains two sheets, which provide opposite approaches for calculating the output currents.