PX5410

The growing use of the Internet and the increasing demand for storage area network (SAN) solutions has created the need for next generation physical layer ICs. In addition the introduction of 4 G Fiber Channel (4GFC) has introduced the need for next generation ICs to be backwards compatible with 1 G and 2 G Fiber Channel. The Zarlink PX5410 provides a multi-rate VCSEL driver solution for 1, 2, and 4GFC.

The Zarlink PX5410 Multi-Rate VCSEL Driver is designed for various applications up to 4.25 Gb/s. It consists of a DC-coupled amplifier with adjustable modulation and bias currents optimized for driving commercially available VCSEL-based transmit optical sub assemblies (TOSAs) from a single +3.3 V supply.

VCSEL modulation and bias currents can be programmed by a variety of means including external resistors, programmable potentiometers, SFF-8472 controllers, or microcontroller DAC outputs. Selectable temperature compensation and closed-loop average power control deliver optimized optical output power and extinction ratio over temperature.