DECEMBER 7, 2009 -- Maxim Integrated Products has introduced the DS1874, an SFP+ controller with a digital LDD interface. This device controls and monitors all functions for SFF, SFP, and SFP+ optical modules and fully supports the SFF-8472 standard.
The combination of the DS1874 with a MAX3798 or MAX3799 laser driver/limiting amplifier provides a low-cost option for APC loop control, modulation current control, and eye-safety functionality, Maxim says. The chipset eliminates the need for software development, thus reducing cost and speeding time to market, the company adds.
The DS1874 monitors six analog channels -- temperature, Vcc, and MON1-MON4, -- which can be used to meet all monitoring requirements. Laser modulation is controlled by a temperature-driven LUT to compensate for tracking error. Two DAC outputs with 36-entry LUTs are provided for additional monitoring and control functionality.
The DS1874 uses 0.35-micrometer technology to enable the implementation of all SFF-8472 functionality in its 5x5-mm, 28-pin TQFN package with exposed pad.
Maxim says the SFP+ controller is fully specified over the -40 degrees Celsius to +95 degrees Celsius temperature range. Pricing begins at $1.33 (10,000-up, FOB USA).
Visit Maxim Integrated Products
Sponsored Recommendations
Sponsored Recommendations
The AI and ML Opportunity
Sept. 30, 2024
How AI is driving new thinking in the optical industry
Sept. 30, 2024