Editing Function generator (section)

===Waveform generator===
An electronic circuit element used for generating waveforms within other apparatus that can be used in communications and instrumentation circuits, and also in a function generator instrument. Examples are the [[Exar Corporation|Exar]] XR2206<ref>{{cite web |url=http://www.jameco.com/Jameco/Products/ProdDS/34972.pdf |publisher=Exar |title=''Exar XR-2206 Monolithic Function Generator'' |access-date=16 June 2013}}</ref> and {{citation needed span |date=January 2019 |reason=The previous source, Intersil’s own datasheet, doesn’t support the claim that ICL8038 was ever used in function generators as they are described in this article. |text=the [[Intersil ICL8038]] integrated circuits}}, which can generate sine, square, triangle, ramp, and pulse waveforms at a [[Voltage-controlled oscillator|voltage-controllable frequency]].