PX6410

The growing use of the Internet has created increasingly higher demand for multi-Gb/s I/O performance. The demand for 10+ Gb/s WAN bandwidth fuels the growth of short-reach 10 Gb/s infrastructures within high-end telco and datacom routers, switches, servers and other proprietary chassis-to-chassis links.

The Zarlink PX6410 10 Gb/s serial VCSEL driver is designed for various 10 Gb/s PMD applications. PX6410 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 or microcontroller DAC outputs. Selectable current temperature coefficients and APC feedback control allow optical output power and extinction ratio to be maintained over temperature.