Circuit Elements
An electronic circuit element used for generating waveforms within other apparatus is also described as a function generator, or waveform generator. A sub-system may provide an output proportional to some mathematical function of its input; for example, the output may be proportional to the square root of the input. Such devices are used in feedback control systems and in analog computers. An example is the Exar XR-2206 integrated circuit, which can generate sine, square, triangle, ramp, and pulse waveforms over a range of frequencies; it can be used in communications and instrumentation circuits, and also in a function generator instrument.
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