ADC and PLL for Optical Sensors in Depth and Virtual Reality Augmented Reality Applications

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PubDate: August 2018

Teams: University of Brasilia

Writers: Wen-Cheng Lai; S. Aytac Korkmaz

PDF: ADC and PLL for Optical Sensors in Depth and Virtual Reality Augmented Reality Applications

Abstract

In this article a successive approximation register (SAR) analog-to-digital converter (ADC) and phase locked loop (PLL) implemented in tsmc 0.18-um CMOS process is presented for optical sensors in depth camera through virtual reality (VR) and augmented reality (AR) applications. By applying Vcm-based switching method that reduces switching power of the DAC, the proposed SAR ADC with phase locked loop design uses less capacitor in the DAC array. The proposed PLL with a complementary crossed-couple LC-tank voltage- controlled oscillator (VCO) and a mixed design of current mode logic (CML) and true single phase clock (TSPC) logic in the frequency divider.

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