Analog Devices ADN2525ACPZ-WP

10.7 Gbps Active Back-Termination, Differential Laser Diode Driver

10.7Gbps 3.07V~3.53V 39mA LFCSP-16-VQ(3x3) Laser Drivers ROHS

Laser Driver 10.7Gbps 1-CH 16-Pin LFCSP EP Waffle

10G 25 OHM DIFF LDD W/ACTIVE B <NV

10.7 GBPS ACTIVE BACK-TERMINATIO

IC LASER DRIVER 10.7GBPS 16LFCSP

The ADN2525 laser diode driver is designed for direct modula-tion of packaged laser diodes having a differential resistance ranging from 5 Oto 50 O. The active back-termination technique provides excellent matching with the output transmission lines while reducing the power dissipation in the output stage. The back-termination in the ADN2525 absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality to be achieved even when the TOSA end of the output transmission lines is significantly misterminated. The small package provides the optimum solution for compact modules where laser diodes are packaged in low pin-count optical subassemblies. The modulation and bias currents are programmable via the MSET and BSET control pins. By driving these pins with control voltages, the user has the flexibility to implement various average power and extinction ratio control schemes, including closed-loop control and look-up tables. The automatic laser shutdown (ALS) feature allows the user to turn on/off the bias and modulation currents by driving the ALS pin with the proper logic levels. The product is available in a space-saving 3 mm × 3 mm LFCSP specified from -40°C to +85°C. Applications SONET OC-192 optical transceivers SDH STM-64 optical transceivers 10 Gb Ethernet optical transceivers XFP/X2/XENPAK/XPAK/MSA 300 optical modules SR and VSR optical links