公开(公告)号：US20040140830A1

公开(公告)日：2004-07-22

申请号：US10720144

申请日：2003-11-25

Applicant: Broadcom Corporation

Inventor： Jan Mulder ,  Yee Ling Cheung

IPC: H03K005/22

CPC classification number: H03K17/04106 ,  H03M1/146 ,  H03M1/204 ,  H03M1/365 ,  H03M1/742 ,  H04L25/026 ,  H04L25/0276

Abstract: A differential line driver includes first, second, third and fourth cascode transistors connected in parallel, wherein drains of the first and third transistors are connected to a negative output of the differential line driver, and wherein drains of the second and fourth transistors are connected to a positive output of the differential line driver. First, second, third and fourth switching transistors are connected in series with corresponding first, second, third and fourth cascode transistors and driven by a data signal. First and second compound transistors inputting a class AB operation signal at their gates, wherein the first compound transistor is connected to sources of the first and second switching transistors, and wherein the second compound transistor is connected to sources of the third and fourth switching transistors.

Abstract translation: 差分线路驱动器包括并联连接的第一，第二，第三和第四共源共栅晶体管，其中第一和第三晶体管的漏极连接到差分线路驱动器的负输出，并且其中第二和第四晶体管的漏极连接到 差分线路驱动器的正输出。 第一，第二，第三和第四开关晶体管与对应的第一，第二，第三和第四共源共栅晶体管串联连接并由数据信号驱动。 第一和第二复合晶体管在其栅极处输入AB类操作信号，其中第一复合晶体管连接到第一和第二开关晶体管的源极，并且其中第二复合晶体管连接到第三和第四开关晶体管的源极。