ABSTRACT
If the width of a pulse train is made proportional to one voltage and the amplitude of the same pulse train to a second voltage, then the average value of this pulse train is proportional to the product of the two voltages, is called a time division multiplier, a pulse averaging multiplier, or a sigma delta multiplier. The time division multiplier can be implemented using (1) triangular wave, (2) saw tooth wave, and (3) no reference wave.
There are two types of time division multipliers (TDM): (1) the multiplexing TDM (MTDM) and (2) the switching TDM (STDM). A time division multiplier using analog 2 to 1 multiplexers is called a multiplexing TDM. A time division multiplier using analogue switches is called a switching TDM. The multiplexing time division multipliers are described in this chapter, and switching time division multipliers are described in chapter 2.
