Cascade

In electronics, a series of modules is often referred to as a cascade. It is used in order to achieve a greater effect than would be possible with only one module.

Cascades have a number of unique characteristics...

The modules are connected in series.
The output of a module forms the input of the next higher module.
Each higher module can, but need not, have additional inputs.

Illustration cascade.

Cascades are widely used in amplifier circuits, where a weak signal is amplified in multiple modules. Also in digital electronics cascades are frequently used.

Examples of cascades can be found in the topics...