Title:
終端回路
Document Type and Number:
Japanese Patent JP4119062
Kind Code:
B2
Abstract:
A termination circuit to reduce the overshoot and undershoot that are generated when switching the voltage level of a transmission line. The terminating circuit (11) has a termination switching circuit (40) and an auxiliary switching circuit (41). When the voltage level of the termination (5) of the transmission line (4) is switched from a low level to a high level, the termination switching circuit (40) switches the termination (5) that is connected to the ground potential at a low level to the power supply voltage (Vcc) corresponding to a high level, but before that connection is completed, due to the fact that the auxiliary switching circuit (41) temporarily connects the termination (5) to the ground potential corresponding to a low level, the impedance of the terminating circuit (11) is temporarily lowered. Therefore, the overshoot and the undershoot that were generated in the past when switching the voltage level can be reduced.
Inventors:
Koji Takeda
Application Number:
JP30237099A
Publication Date:
July 16, 2008
Filing Date:
October 25, 1999
Export Citation:
Assignee:
Texas Instruments Japan Ltd.
International Classes:
H04L25/02; H03K17/16; H03K19/003
Domestic Patent References:
| JP9046213A | ||||
| JP2196528A | ||||
| JP3116214A |
Attorney, Agent or Firm:
Shigeo Ishijima
Hideki Abe
Hideki Abe