摘要
在采用IC-CAP提取异质结双极晶体管器件的VBIC模型参数的基础上，设计出形式简洁的光调制器驱动电路．电路功耗仅为500mW，在2．5GHz信号下平均上升时间和下降时间（10％～90％）分别为84ps和56ps，输出电压摆幅2．6V．而FUJISTU公司的同类产品FMM3193VI平均上升时间和下降时间（20％～80％）为120ps，功耗为2．1W．
On the basis of extracting parameters in a VBIC model used on an InGaP/GaAs HBT,a simplified modulator driver IC for a lightwave communication system is designed. The circuit consumes only 500mW with an output voltage of 2.6Vp-p at 2.5Gb/s. The 10% to 90% rise time and fall time are 84ps and 56ps,respectively. Correspondingly,the FMM3139VI GaAs laser driver of the FUJISU company consumes 2.1W with an output voltage of 3Vp-p. The 20% to 80% rise time and fall time are both 120ps.
