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Transient Terminator for Transmission Lines

IP.com Disclosure Number: IPCOM000040739D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02

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Ludwig, T Schettler, H Zuehlke, R [+details]


High-speed signal transmission through transmission lines requires proper line termination to prevent oscillations on a line. Existing terminators are subject to high current and power dissipation. The transient terminator, described in this article, is applied only for a short time to absorb the energy in the transmission line that causes oscillations. Fig. 1 shows one example of the transient terminator. The transmission line is connected to the chip-in pad and terminated by a first pair of FET transistors T1, T2, connected to high potential VH, and by a second pair of FET transistors T3, T4, connected to ground. T1 and T2 are P-type, and T3 and T4 are N-type FETs.