Area and Power Optimized DTMF Detection by Using Different FPGA's

Abstract

Rapid improvements in communication technologies, different applications in communications by FPGA technology. This paper explains about the Dual tone multi frequency detection (DTMF) by using different FPGA's. Fast Fourier Transform (FFT) is one of the approach to detect the DTMF tones. But it requires more hardware and also power consuming. So this paper proposes Split Goertzel Algorithm is optimized solution compared to Fast Fourier Transform. By using resource sharing approach (RSA) better optimized solution is achieved compared to Split Goertzel Algorithm. For functional verification Mentor graphics Modelsim software is used. Xilinx ISE 14.7 is used for Simulation & Synthesis respectively. To test the FPGA inside results the Xilinx Chopscope is used. The Spartan 3e, Spartan 6 & Zybo zynq 7000 series family FPGA boards are used in this paper and the corresponding results are showed as a table.