PX5419A

The growing use of the Internet has created increasingly higher demand for multi-Gb/s I/O performance. The demand for 100 Gb/s+ WAN bandwidth fuels the growth of short-reach 40 Gb/s infrastructures within high-end telco and datacom routers, switches, servers and other proprietary chassis-to-chassis links.

The Zarlink PX5419A 12X3 Gb/s VCSEL Driver* with ACJTAG is a twelve-channel VCSEL driver designed for various 12x3 Gb/s parallel 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 Primarion PX5419A VCSEL Driver settings is loaded by a simple four-wire CMOS serial interface that features read/write capabilities.

The Primarion PX5419A Driver provides full ACJTAG support for boundary scan testability, allowing either AC or DC module connectivity validation and systems test.