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The most Important task in the design and operation of electronic circuits is struggle against failures due to noise. Such interference can occur directly on printed circuit boards and signal transmission by cable. In cases where digital signals must be transmitted over the cable or between the measuring devices, there are specific problems. An important role plays the effects of capacitive loading on high-frequency signals, common-mode crosstalk as well as on "the effects of a long line" (reflections from mismatched load).
Parasitic coupling of the digital elements of power circuits on vnutriplitnykh connections. A typical problem of occurrence of interference on the PCB is the presence of current pulses in the power supply circuit.
Discrete load management from the elements of TTL and CMOS 13.10.2017 at 11:16
Inputs TTL and CMOS 13.10.2017 at 09:38