Editing Function generator (section)

=== Specifications ===
Typical specifications for a general-purpose function generator are:
* Produces sine, square, triangular, sawtooth (ramp), and pulse output. [[Arbitrary waveform generator]]s can produce waves of any shape.<ref name=bakshi/>
* It can generate a wide range of frequencies. For example, the Tektronix FG 502 (ca 1974) covers 0.1&nbsp;Hz to 11&nbsp;MHz.<ref name="FG502">{{Citation |title=FG 502 Function Generator |year=1973 |series=Instruction Manual |publisher=Tektronix |location=Beaverton, OR }}, pp=1-7&ndash;1-8</ref>
* Frequency stability of 0.1 percent per hour for analog generators<ref name="FG502"/> or {{nowrap|500 ppm}} for a digital generator.
* Maximum sinewave [[distortion]] of about 1% (accuracy of diode shaping network) for analog generators.<ref>FG 502 distortion is {{nowrap|0.5 percent}}</ref> Arbitrary waveform generators may have distortion less than {{nowrap|-55 dB}} below {{nowrap|50 kHz}} and less than {{nowrap|-40 dB}} above {{nowrap|50 kHz.}}
* Some function generators can be phase locked to an external signal source, which may be a frequency reference or another function generator.
* Amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM) may be supported.
* Output amplitude up to {{nowrap|10 V}} [[peak-to-peak]].
* Amplitude can be modified, usually by a calibrated [[Attenuator (electronics)|attenuator]] with decade steps and continuous adjustment within each decade.
* Some generators provide a DC offset voltage, e.g. adjustable between -5V to +5V.<ref name=bakshi/>
* An output impedance of {{nowrap|50 Ω}}.