ABSTRACT

The time division multiplier can be implemented using a triangular wave, saw tooth wave or without using any reference wave. 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. This is called a time division multiplier or pulse averaging multiplier or sigma delta multiplier. The time division multiplier can be implemented using a triangular wave, saw tooth wave or without using any reference wave. There are two types of time division multipliers (TDMs): multiplexing TDM and switching TDM. A time division multiplier using analog 2-to-1 multiplexers is called a multiplexing TDM. A time division multiplier using analog switches is called a switching TDM.