E8257D PSG analog signal generator
E8267D PSG vector signal generator
E8663D PSG RF Analog Signal Generator
N5171B EXG X-Series RF Analog Signal Generator
N5173B EXG X-Series Microwave Analog Signal Generator
View all Keysight Technologies Inc. Signal Generators
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Overview:
Signal generator is an electronic instrument that generates repeating electronic signals.
It contains an electronic oscillator, a circuit that is capable of creating a repetitive waveform. The most common waveform is a sine wave, but sawtooth, step (pulse), square, and triangular waveform oscillators are commonly available as are arbitrary waveform generators (AWGs). If the oscillator operates above the audio frequency range (>20 kHz), the generator will often include some sort of modulation function such as amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM) as well as a second oscillator that provides an audio frequency modulation waveform.
In musical sound synthesis, oscillators conventionally form the most fundamental synthesis building block. With analog synthesizers, they are realized with voltage-controlled oscillators and with digital or software synthesizers they are generated algorithmically. Modern software synthesis environments such as Csound have generalized the oscillator as a type of unit generator (UG), where UGs are primitive modules that produce, modify or acquire audio or control signals.