Myson Century CS6706
The CS6706 is a high-speed fiber optic VCSEL driver suited for applications up to 1.25Gbps. The CS6706 accepts differential PECL inputs, and includes a CMOS disable pin for bias and modulation current control.GENERAL DESCRIPTION
Further, the bias and modulation current can be set independently via two external resistors, and the rise/fall time can also be adjusted using external resistors. A monitor photodiode can be incorporated in the application circuit to ensure a stable laser power source. Any failure of the laser is detected using the two on-chip window comparators. Once a failure is detected, the laser power safety switch will be triggered and can only be reset by a power off condition. The slow start feature allows bias current to settle before modulation current output begins, to protect the laser.FEATURES
CS6706 1.25Gbps Fiber-Optic VCSEL/Laser Driver● Rise/fall time < 200ps, ideally suited for application up to 1.25Gbps.
● Independently programmable laser bias and modulation current: bias current to 60mA and modulation current to 45mA.
● Differential PECL inputs.
● Automatic laser power control with monitor circuit.
● Slow start and safety switch.
● Laser failure indication.
● Programmable rise/fall time.