Abstract:Nowadays, the All-Digital Phase-Locked Loop (ADPLL) as a digital electronic circuit is applied in modern communication systems. The main components of ADPLL such as phase detector, loop filter and voltage controlled oscillator which are all digitally discussed in detail. On the other hand, sensitivity to parasitic mismatches in LC oscillators and the limitation of the robustness and the quantization noise cause trying to overcome these challenges by a VCO and also a delta-sigma digital to analog converter whic… Show more
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