公开(公告)号：WO0147109A3

公开(公告)日：2001-12-13

申请号：PCT/EP0012508

申请日：2000-12-11

Applicant: ERICSSON TELEFON AB L M

Inventor： BANGS JOAKIM ,  THOMPSON JOHN ,  FILIPPI RAYMOND

IPC: H03F3/45 ,  H03K5/24 ,  H04L25/02

CPC classification number: H04L25/0292 ,  H03F3/45085 ,  H03F3/45556 ,  H03F3/4556 ,  H03F2203/45418 ,  H03F2203/45424 ,  H03F2203/45592 ,  H03K5/2418 ,  H04L25/0276 ,  H04L25/028

Abstract: Problems associated with using bipolar differential circuits over a wide common mode voltage range are solved using first and second amplifier circuits (3 and 5), respectively operating over first and second voltage sub-ranges. The low voltage differential signal (LVDS) (1) is applied across a pair of series connected resistors (7 and 9), and to the inputs of the amplifiers (3 and 5). The common mode voltage signal (11) is fed to the inputs of third and fourth amplifiers (15 and 17). The third and fourth amplifiers (15 and 17) ensure that the LVDS receiver has a constant linear transfer characteristic over the differential input signal range and over the full common mode range, especially over the amplifier transition region.

Abstract translation: 使用分别在第一和第二电压子范围上操作的第一和第二放大器电路（3和5）来解决与在宽共模电压范围上使用双极差分电路相关的问题。 低压差分信号（LVDS）（1）施加在一对串联的电阻（7和9）上，以及放大器（3和5）的输入上。 共模电压信号（11）被馈送到第三和第四放大器（15和17）的输入端。 第三和第四放大器（15和17）确保LVDS接收器在差分输入信号范围上和整个共模范围上，特别是在放大器过渡区域上具有恒定的线性传输特性。