New Industry Products

Micrel Launches SY88903ALKG Digital Telecom Amplifier

October 01, 2005 by Jeff Shepard

Micrel Inc. (San Jose, CA), a developer of IC and Ethernet solutions, launched the SY88903ALKG, a 1.25 Gbps limiting post amplifier featuring 3.3 V operation with better than 5 mV sensitivity. The IC is the latest part in Micrel’s next-generation family of post amplifiers, first launched in early 2005, and designed to work at Gigabit and fiber channel data rates. The new IC is offered in a small form factor package and is suited for optical modules and passive optical network systems.

The SY88903ALKG features high sensitivity loss of signal (LOS) circuitry, which can reduce system cost by allowing the use of lower-gain TIAs. It also offers fast LOS switching times, PECL data outputs with a TTL compatible LOS output — ideal for applications where the LOS function is in the critical timing path. The IC’s LOS switching thresholds has 3 db (typical) electrical hysteresis between the LOS assert and de-assert levels to eliminate chattering. It is backward-compatible with Micrel’s existing family of post amplifiers with minimal changes required.

The SY88903ALKG is offered in a small 3 mm x 3 mm footprint, 10-pin MSOP packaging. The SY88903ALKG is currently available in volume with pricing starting at $1.95 for 10,000-unit quantities.