Post amplifiers target PON applications -

Post amplifiers target PON applications

Micrel added to its family of limiting post amplifiers by introducing the SY88903ALKG, SY88149CL, SY88313BLNG, and SY88343BL, a series of 1.25- to 3.2-Gbit/s parts, featuring a 3.3-V power supply, and higher gain and sensitivity for either signal or loss of signal indicators. These ICs are designed to work for Fast Ethernet, OC3 to OC48, and parallel 10-Gbit Ethernet data rates. The chips are offered in small form factor packages and are suited for optical modules for datacom, telecom, and passive Optical Network (PON) systems.

The SY88149CL, SY88315BL, and SY88343BL all feature high sensitivity SD or LOS path, the ability to either detect signal or to detect loss of signal. This is a key feature for reducing system cost by allowing the use of lower gain TIAs. The ICs are offered in MSOP packages with backward-compatibility to Micrel’s existing post-amplifier family, with most also available in 10-pin MLF packaging. Available now, in lots of 10,000, prices start at $1.95. More information is available at

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