MAX3946 Datasheet (Maxim Integrated Products)

MAX3946, SFP+ Laser Driver

The MAX3946 is a +3.3V, multirate, low-power laser diode driver designed for Ethernet and Fibre Channel transmission systems at data rates up to 11.3Gbps.

This device is optimized to drive a differential transmitter optical subassembly (TOSA) with a 25I flex circuit.

The unique design of the output

MAX3946 Features

* S 225mW Power Dissipation Enables < 1W SFP+ MAX3946 Enabling the Use of Unmatched FP/DFB TOSAs S Supports SFF-8431 SFP+ MSA and SFF-8472 Digital Diagnostic S 225mW Power Dissipation at 3.3V (IMOD = 40mA, IBIAS = 60mA Assuming 25I TOSA) S Single +3.3V Power Supply S Up to 11.3Gbps (NRZ) Ope