10.7Gbps Compact Laser Diode Driver

The MAX3934 is a compact +5V or -5.2V laser driver designed to directly modulate a laser diode at data rates up to 10.7Gbps. The driver provides externally programmable laser biasing and modulation currents. DC-coupling with an integrated compensation network, consisting of a series-damping resistor and a shunt RC, makes the MAX3934 ideal for compact subassemblies.

The MAX3934 accepts a differential CML or PECL data signal and includes 50Ω on-chip termination resistors. It delivers a 1mA to 60mA laser bias current and a 20mA to 80mA laser modulation current with a typical edge speed of 25ps (20% to 80%). A high-bandwidth, fully differential signal path is internally implemented to minimize jitter accumulation. Additional features include a data polarity control, bias current, and modulation current monitors.

Applications

* Add/Drop Multiplexers * XENPAK/XPAK Modules * XFP Modules

* 1.30mm x 1.35mm Die Size

* Integrated Compensation Network

* Single +5V or -5.2V Power Supply

* 73mA Supply Current

* Up to 10.7Gbps (NRZ) Operation

* Programmable Laser Bias Current Up to 60mA

* Programmable Modulation Current Up to 80mA

* Polarity Control

* 25ps Output Edge Speed

* CML-/PECL-Compatible Signal Inputs

* Integrated Input Termination Resistors