Patent ID: 9161403
Filing Date: 2015-10-13
Classification: H05B,Y02B

Abstract:
1. A driving circuit for driving a laser diode, comprising: at least one differential pair including a first output node and a second output node and configured to switch an output current, the output current being supplied to the laser diode through the first output node; a branching unit configured to branch a driving signal and generate a plurality of branched driving signals; a delay circuit configured to make a delay difference between the plurality of branched driving signals; a current source configured to adjust the output current; a dummy load coupled to the second output node, the dummy load having an equivalent characteristic to the laser diode; a first termination resistor coupled between the first output node and a termination ground; and a second termination resistor coupled between the second output node and the termination ground, the first termination resistor and the second termination resistor being provided as a pair, wherein