fasedeler

Fasedeler is a term used in electronics to describe devices and circuits that produce outputs with controlled phase relationships relative to an input signal. Depending on the design goal, a fasedeler may function as a phase divider, a phase splitter, or a phase shifter. As a phase divider, it can output signals whose phase is a fixed fraction of the input and, in some cases, reduce the frequency while preserving waveform shape. As a phase splitter or phase shifter, it creates two or more outputs with specific phase offsets, such as 0 and 90 degrees for quadrature signals.

Implementations of fasedelers range from passive to active technologies. Passive approaches include RC and LC all-pass networks and transformers that shift phase with minimal amplitude change. Active solutions use operational amplifiers or transistors to achieve larger or more controllable phase shifts. In digital electronics, phase division is commonly achieved with flip-flops or counters to generate multiple clock phases for synchronous circuits, while analog designs focus on precise phase relationships for measurement or modulation tasks.

Applications of fasedelers span clock distribution in integrated circuits and microprocessors, phase-locked loop systems, quadrature modulation and demodulation, RF communication, and various test and instrumentation setups. The concept underpins any scenario requiring reliable phase relationships between signals or multiple phase paths for measurement and processing.

Name and etymology: in Dutch, fase means phase and deler means divider, reflecting the core function of these devices. See also phase shifter, all-pass filter, frequency divider, and clock distribution networks.