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A non-linear neural D/A converter for direct digital frequency synthesizers

Sadati, N ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1109/ijcnn.2006.247147
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2006
  4. Abstract:
  5. 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. © 2006 IEEE
  6. Keywords:
  7. Amplitude modulation ; Approximation theory ; Function evaluation ; Neural networks ; ROM ; Amplitude conversion ; Digital frequency synthesizers ; Non-linear D/A converter ; Sine function ; Frequency synthesizers
  8. Source: International Joint Conference on Neural Networks 2006, IJCNN '06, Vancouver, BC, 16 July 2006 through 21 July 2006 ; 2006 , Pages 2669-2672 ; 10987576 (ISSN); 0780394909 (ISBN); 9780780394902 (ISBN)
  9. URL: https://ieeexplore.ieee.org/abstract/document/1716457