Abstract
Abstract: Abstract In this article, a full custom design and implementation of a sine wave All Digital Phase Lock Loop (ADPLL) system based on ARM microcontroller is described. These ADPLL implementations are also referred as Software - Direct Digital Synthesis ADPLL (DDS-ADPLL). In the literature, the work related to software DDS ADPLLs is to achieve a specific transient response or dynamic behavior. However, there are few literature that addresses the issues encountered while implementing the Sine wave ADPLL on hardware. This work identifies the problem one may face while implementing the DDS-ADPLLs on microcontroller and proposes methods / solutions to mitigate those issues. Moreover, in order to minimize jitter it is proposed to use timer interrupts and integer datatype. The design procedure of this work uses only integer datatype forimplementation. Keywords: DDS ADPLL; ADPLLs; All Digital PLL; Phase Locked Loop; LPC2148ADPLL
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