MARCH 15, 2010 -- Maxim Integrated Products (NASDAQ: MXIM) has introduced the DS1873 SFP+ controller with analog LDD interface. Combined with the MAX3736 laser driver, the DS1873 is designed to control and monitor all functions for SFF, SFP, and SFP+ optical modules, while fully supporting the SFF-8472 standard.
The company introduced an SFP+ controller with a digital LDD interface in December.
Maxim says that, using 0.35-micrometer technology, the DS1873 implements a high level of integration, which is key to APC loop, modulation current control, and eye safety functionality.
Laser modulation is controlled by a temperature driven LUT. Two additional 9-bit DAC outputs with 36-entry LUTs are provided. The DS1873 monitors six analog channels: temperature, Vcc, and MON1-MON4. MON3 is a fully differential input.
Measuring 5x5 mm, the DS1873 is fully specified over the -40 degrees Celsius to +95 degrees Celsius temperature range, and is available in a 28-pin TQFN package with exposed pad, Maxim says. Pricing begins at $1.39 (1000-up, FOB USA).
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