Analysis of Phase Locked Loop Using 180nm Technology for Bluetooth Applications

Abstract: Bluetooth is a wireless technology standard for short-wave length radio transmission of data for both fixed and mobile devices, thereby creating personal area network. This provides a secure communication between devices such as faxes, mobile phones, laptops, PCs, global positioning system receivers. An on-chip phase locked loop (PLL) for Bluetooth application is specified in this paper. The closed loop of the proposed PLL is stable. This phase locked loop was designed with a digitally controlled oscillator, a phase detector, loop filter and a divide by N counter. The phase locked loop is simulated to have a lock in range of 2430MHz to 2470MHz. In the proposed Phase locked loop, area is 12156(um2), power is 305825(nW), delay is 7620(ps) and memory is 65307(K). Cadence encounter tool is used to analyse and compare the conventional phase locked loop and proposed phase locked loop.

Keywords: Phase locked loop (PLL), phase detector, lock range, Bluetooth application