Patent ID: 6636069
Filing Date: 2003-10-21
Classification: H03K,H04L

Abstract:
A slew rate controlled termination circuit comprising:a first termination circuit coupled with a transmission line terminal, and a first voltage terminal, the first termination circuit having a first activation input and being responsive to a signal on the first activation input to conduct a current between the transmission line terminal and the first voltage terminal through a first resistance; and a first slew rate control circuit to supply a first signal to the first activation input of the first termination circuit to cause the first termination circuit to present a high impedance between the transmission line terminal and the first voltage terminal, said high impedance having a higher resistance than said first resistance, and the first slew rate control to supply a second signal to the first activation input to cause the first termination circuit to transition from the high impedance to the first resistance at a controlled slew rate.