A high resolution DDFS design on VHDL using Bipartite table method
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
International University of Sarajevo
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a Look Up Table (LUT) based Direct Digital Frequency Synthesizer (DDFS) is designed on VHDL. Bipartite Table Method, an advance memory compression method, is used together with quadratic compression method. 23 mHz frequency resolution is achieved with 100MHz clock input. The required memory is obtained 585 times smaller than traditional DDFSs. A MATLAB code is revealed to select the best design which provides the smallest required memory for 100 dB Spurious Free Dynamic Range (SFDR) level. The contents of the LUTs are also evaluated by using MATLAB software. The design is simulated for multiple frequencies between 23mHz-30MHz with VIVADO 2016.3 software. The simulation results perfectly match with calculations.
Açıklama
Anahtar Kelimeler
Bipartite Table Method, DDFS, DDS, Quadratic Compression, VHDL
Kaynak
Periodicals of Engineering and Natural Sciences
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
5
Sayı
3
