Title :
A pipelined all-digital delta-sigma modulator for fractional-N frequency synthesis
Author :
Kozak, Mucahit ; Kale, Izzet ; Borjak, Assaad ; Bourdi, Taoufik
Author_Institution :
Dept. of Electron. Syst., Westminster Univ., UK
Abstract :
In this paper, we present the design considerations and implementation aspects of a pipelined all-digital fourth-order Multi-Stage-Noise-Shaping (MASH) Delta-Sigma (ΔΣ) modulator suitable for Fractional-N (F-N) Phase Locked Loop (PLL) frequency synthesis applications. The modulator has successfully been targeted to an AlteraTM Field-Programmable-Gate-Array (FPGA) device. The functional operation of the modulator has been verified through structural bit-level simulations as well as experimental results on the actual FPGA implementation
Keywords :
delta-sigma modulation; field programmable gate arrays; frequency synthesizers; modulators; phase locked loops; pipeline processing; Altera FPGA implementation; MASH ΔΣ modulator; PLL frequency synthesis; all-digital delta-sigma modulator; field programmable gate array; fourth-order type; fractional-N frequency synthesis; multi stage noise shaping; phase locked loop; pipelined delta-sigma modulator; structural bit-level simulations; Delta modulation; Field programmable gate arrays; Filters; Frequency conversion; Frequency modulation; Frequency synthesizers; Phase locked loops; Phase modulation; Phase noise; Quantization;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.848943
