Title :
Area-optimized FPGA implementation of a digital FM modulator
Author :
Uusikartano, Riku ; Nittylahti, J. ; Renfors, Markku
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
Abstract :
An architecture and a prototype implementation of a digital frequency modulator are presented. The system features a direct digital synthesizer with a highly compressed ROM and a low-area Interpolator for the audio input signal. The frequency synthesizer has a spurious free dynamic range of more than 75 dB. The implementation occupies less than 200 configurable logic blocks on a Xilinx XC4000E-series field programmable gate array
Keywords :
direct digital synthesis; field programmable gate arrays; hardware description languages; interpolation; logic design; modulators; 75 dB; Xilinx XC4000E-series field programmable gate array; architecture; area-optimized FPGA implementation; audio input signal; compressed ROM; digital FM modulator; direct digital synthesizer; frequency synthesizer; logic blocks; low-area Interpolator; prototype; spurious free dynamic range; Circuits; Clocks; Digital modulation; Field programmable gate arrays; Frequency modulation; Interpolation; Laboratories; Programmable logic arrays; Read only memory; Synthesizers;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780016
