Texas Instruments ONET1191VRGPR

Description
The ONET1191V is a high-speed, 3.3-V laser driver designed to directly modulate VCSELs at data rates up to 11.3 Gbps. It provides a two-wire serial interface for digital control of modulation and bias currents, eliminating the need for external components. An optional input equalizer can be used for equalization of up to 300 mm of microstrip or stripline transmission line on FR4 printed-circuit boards. The ONET1191V includes an integrated automatic power control (APC) loop and circuitry to support laser safety and transceiver management systems. It is characterized for operation from -40°C to 85°C ambient temperatures and is available in a small-footprint, 4-mm x 4-mm, 20-pin QFN package.

Features
11.3-Gbps operation
Two-wire digital interface
Digitally selectable modulation current up to 40 mA
Digitally selectable bias current up to 20 mA
Automatic power control (APC) loop
Supports Transceiver Management System (TMS)
Programmable input equalizer
Laser safety features
Analog temperature sensor output
Single 3.3-V supply
Operating temperature: -40°C to 85°C
Surface-mount, small-footprint, 4-mm x 4-mm, 20-pin QFN package

Applications
10-Gigabit Ethernet optical transmitters
8x and 10x Fibre Channel optical transmitters
SONET OC-192/SDH STM-64 optical transmitters
XFP and SFP transceiver modules
XENPAK, XPAK, X2, and 300-pin MSA transponder modules