PX5410 - Multi-Rate VCSEL Driver

Full Optical I/O information, including complete datasheets, is available to qualified customers. For further information, please send an email to OptoIO@Zarlink.com or contact your sales representative.

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 Gbps. 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.

Features

• Up to 4.25 Gbps 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

Typical Applications

• SFP, SFF form factors
• 4GFC, 2GFC, 1GFC, OC-48, Gigabit Ethernet
• Proprietary intra-system optics

Product Availability and Packaging

Product Lead-Times when quoted are not guaranteed and are provided as a general guideline only; they may be varied from time to time without notice. Updated estimates or actual schedule commit dates will be provided at the time of order placement with Zarlink or its distributor.

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