Quantizer¶

The output signal of a quantizer can assume integer values only, that are a multiples of an integer value. It follows a ramp by creating a step function. The step size depends on the selected range and the resolution. Example: For a range of 16 and a resolution of 3 bits, the step size amounts to q = 16 / 2^3 = 2.

The selected range however does not limit the output signal, as it is only used for step size computation.

The quantizer can be used for simulating digital systems where only discrete values can occur. The discrete time elements themselves do not quantize the signal, they only sample and compute the signal at discrete times.

Example: 3-Bit Quantizer