Difference between Signal Generator & Oscillator

Difference between Signal Generator & Oscillator Points : difference between signal generator and oscillator The difference between signal generator and oscillator can be understood by following statement.

“The signal generator, like an oscillator, is a source of sinusoidal signals but the signal generator is also capable of modulating its sinusoidal output signal with other signals”. This is the main difference between two instruments. Function Generator The function generator is a multipurpose signal source having an enormous range of applications. The functions delivered by such an instrument are usually square wave, triangular wave and sine wave. Often there is a facility for making the first two functions non-symmetrical in time, to produce a rectangular wave or non-symmetrical triangular wave (saw-tooth). A simplified block diagram of a typical function generator is shown in fig.