Modeling of Reference Injection Based Low-Power All-Digital Phase-Locked Loop for Bluetooth Low-Energy Applications in Lab VIEW

Abstract

This paper presents a modeling of All Digital Phased-Lock Loop (ADPLL) based on reference injection (RI) technique in Lab View. ADPLL is one of the attractive solutions due to its low design complexity and low power consumption which makes it suitable candidate for low power IoT devices. The RI based design eliminates the strict requirements of time to digital converter (TDC) in traditional ADPLL structure which significantly reduces the design complexity and consumes low power. By utilizing the efficient system design capabilities offered by the LabVIEW environment, a RI based ADPLL is modeled in LabVIEW to evaluate the design and analyze its performance. The system level simulation of the ADPLL is significantly meaningful for the research and design process in a comprehensive way. The simulation results are also presented for the 2.4 GHz reference injection based ADPLL from a reference frequency of 32MHz.