Study of voltage controlled oscillator based analog-to-digital converter

Adhikari, Soumalya and Choudhuri, Saptarshi Pal and Sneha, Supriya (2011) Study of voltage controlled oscillator based analog-to-digital converter. BTech thesis.



A voltage controlled oscillator (VCO) based analog-to-digital converter (ADC) is a time based architecture with a first-order noise-shaping property, which can be implemented using a VCO and digital circuits. This thesis analyzes the performance of VCO-based ADCs in the presence of non idealities such as jitter, nonlinearity, mismatch, and the metastability of D flip-flops. Based on this analysis, design criteria for determining parameters for VCO-based ADCs are described.
Further, the study involves the use of VCO based Dual-slope A/D converter and its behaviour under different input voltage level. Graph is plotted between output voltages of the integrator vs. time. Digital circuits like a bit-counter and logic circuits are used for operation mode. A normal VCO model is also done in MATLAB-simulink environment and studied under variable input frequency and corresponding output plots are viewe

Item Type:Thesis (BTech)
Uncontrolled Keywords:VCO,ADC,CMOC
Subjects:Engineering and Technology > Electronics and Communication Engineering
Divisions: Engineering and Technology > Department of Electrical Engineering
ID Code:2272
Deposited By:Mr Soumalya Adhikari
Deposited On:13 May 2011 11:39
Last Modified:14 Jun 2012 14:57
Supervisor(s):Subhashini, K R

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