A Non-Linear Neural D/A Converter for Direct Digital Frequency Synthesizers
Nasser Sadati, Behnam Sedighi · The 2006 IEEE International Joint Conference on Neural Network Proceedings · 2006
In this paper, a new non-linear D/A converter (DAC) is presented. This D/A converter uses neural network to approximate a sine function. It is targeted for direct digital frequency synthesizers in which the phase to sine amplitude conversion is usually performed using a ROM. Utilizing the proposed DAC, the power hungry ROM is removed. A design example is presented and the performance of the DAC is compared to the conventional method. The impact of non-idealities on the performance of the system is also investigated.