PX6410

www.DataSheet4U.com PX6410 Multi-Rate VCSEL Driver Product Brief September 2004 Description 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. 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 or microcontroller DAC outputs. Selectable current temperature coefficients and APC feedback control allow optical output power and extinction ratio to be maintained over temperature. 410 PX6 Features Up to 10.7 Gb/s serial VCSEL driver Single +3.3 V supply Average power control (APC) provides constant output optical power Digital diagnostics provided with bias, photodiode, and temperature monitors Independent temperature compensation for VCSEL bias and modulation current VCSEL fault protection limits output optical power for laser safety Differential CML compatible inputs with on-chip termination 4 mm x 4 mm QFN package Applications ...