Analog to Digital and Digital to Analog Conversion - Digital Signal Processing Laboratory - page 55

ˆ

Output x(n)

3∆

2∆

∆

0

Input x(n)

−7∆ /2 −5∆ /2 −3∆ /2 - ∆ /2 3∆ /2 7∆ /2

∆/2 5∆/2

−∆

−2∆

−3∆

(a)

ˆ

Output x(n)

5∆/2

3∆/2

∆/2

Input x(n)

0

−4∆ − 3∆ −2∆ −∆ ∆2∆3∆4∆

−∆/2

−3∆/2

−5∆/2

(b)

FIGURE 4.3

Input-output staircase diagram of uniform quantizer. (a) Mid-tread quantizer, (b) Midriser
quantizer.