Digitalsignalübertragende Schaltung

摘要

The invention pertains to an electronic circuit for transmitting and/or processing digital signals. The increase in digital signals to be processed at high clock rates increasingly entails problems of power consumption and of radiated interference caused by transmission of digital signals. The object of the invention is to reduce radiated interference in the transmission of digital signals. The invention is based on the principle of providing data transmission that is low in radiated interference by reducing the voltage range between H and L levels on link lines (3) transmitting data signals; to do this the input resistor of the digital signal input (20) to a circuit receiving digital signals is designed for such a low impedance that it can be current-controlled by a digital signal source (11) or can be controlled with a narrow voltage level range. The input resistor is preferably a common gate transistor (21). The digital signal source (11) can be realized, for example, with an open drain output. Designed especially for transmitting digital signals between CMOS circuits.