PX6419

The growing use of the Internet has created increasingly higher demand for multi-Gb/s I/O performance. The demand for 1 Tb/s+ WAN bandwidth fuels the growth of short-reach 120 Gb/s infrastructures within high-end telco and datacom routers, switches, servers and other proprietary chassis-to-chassis links.

The Zarlink PX6419 12X10 Gb/s VCSEL Driver* is a 12-channel VCSEL driver designed for various 12x10 Gb/s, 120 Gb/s parallel optics and CWDM PMD applications. It consists of a DCcoupled amplifier with selectable modulation and bias currents optimized for driving commercially available, common cathode VCSELs from a single +3.3 V supply.

Individual channel settings are used to control the modulation and bias current and their temperature coefficients, allowing the optical output power and extinction ratio to be optimized. Data controlling the Zarlink PX6419 VCSEL Driver settings is loaded by a simple four-wire CMOS serial interface that features read/write and daisy chain capabilities.