Patent ID: 7006543
Filing Date: 2006-02-28
Classification: H03F

Abstract:
1. A system for driving an optoelectronic device, comprising: a buffer circuit for receiving a differential electrical signal; a dedicated voltage regulator having an input adapted to receive a control signal and an output adapted to provide an output voltage that is a function of the control signal; and a driver amplifier comprising a first amplifier having first and second differentially connected transistors and a first current source, a second amplifier having third and fourth differentially connected transistors and a second current source; a time delay network connected between the inputs of said first and second amplifiers and having a first input coupled to the output of said buffer circuit and a second input coupled to said voltage regulator and an output for providing a precisely controlled waveform to an optoelectronic device; wherein a first input is coupled to the base of the first and third transistors and a second input is coupled to the base of the second and fourth transistors.