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Date: 17th Mar 2010
Maxim's new SFP+ optical module controller
with analog LDD interface
Maxim has introduced the DS1873 SFP+ controller with analog
LDD interface. Combined with the MAX3736 laser driver, the
DS1873 controls and monitors all functions for SFF, SFP,
and SFP+ optical modules, while fully supporting the SFF-8472
standard.
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.
The DS1873 is fully specified over the -40°C to +95°C
temperature range, and is available in a 28-pin 5mmx5mm
TQFN package with exposed pad. Pricing begins at $1.39 (1000-up,
FOB USA).
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