General Description

The VSC7991 is a single 7V supply, 10.7Gb/s Electroabsorption Modulator (EAM)/laser diode driver with direct access to the laser modulation FETs. Laser offset and modulation currents are set by external components allowing precision monitoring and setting of the voltage levels. Data inputs are differentially terminated to 50Ω.

Features

• Maximum Rise/Fall Times of 38ps

• High-Speed Operation

(Up to 10.7Gb/s NRZ Data)

• Differential Inputs

• Single-Supply

• CML-Compatible Data Inputs

• On-Chip 50Ω Input Terminations

• 50Ω Output Impedance

Applications

• SONET/SDH @ 2.488Gb/s, 9.952Gb/s, 10.7Gb/s