Design of a Linear Voltage to Frequency Converter for Digital Audio Applications
Shajin Prince1, Samson Immanuel J2, Manoj G3, Amir Anton Jone A4, Bini D5
1Mr. Shajin Prince, Assistant Professor of ECE in Karunya Institute of Technology and Sciences, Coimbatore, India.
2Mr. J. Samson Immanuel, Assistant Professor of ECE in karunya Institute of Technology and Sciences, Coimbatore, India.
3Dr. Manoj G, Assistant Professor of ECE in karunya Institute of Technology and Sciences.
Mr. A. Amir Anton Jone A, Assistant Professor of ECE at Karunya Institute of Technology and Sciences, Coimbatore, India.
Ms. Bini D, research scholar in Karunya Institute of Technology and Sciences, Coimbatore.
Manuscript received on October 16, 2019. | Revised Manuscript received on 25 October, 2019. | Manuscript published on November 10, 2019. | PP: 4458-4464 | Volume-9 Issue-1, November 2019. | Retrieval Number: A5321119119/2019©BEIESP | DOI: 10.35940/ijitee.A5321.119119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Voltage to frequency converters are used in various types of analog to digital converters in suitable digital audio applications. One of the applications is the Audio Interface which has been considered. The Voltage to frequency converter (VFC) thus plays a major role in the analog to digital conversion. This paper proposes a low power VFC designed in 0.18 µm technology which in turn is used to design a low cost and a high-resolution analog to digital converter (ADC). The analog signal is given to the V-F converter and the VFC output is given to the frequency counter using a suitable link. This counter gives the digital output. The design is implemented in PSoC and the performance is analysed with the previous technologies. Parameters such as sensitivity, output frequency and power consumption are analysed. This V-F converter and ADC are used in the digital audio interface which is used for audio applications. With the proposed VFC and ADC, the interface produced a good SNR compared to the conventional audio interfaces.
Keywords: low Power VFC, frequency Counter, PSoC
Scope of the Article: Frequency Selective Surface