Design of phase locked loop based on simulink pdf

Although a pll performs its actions on a radio frequency signal, all the basic criteria for loop stability and other parameters are the same. Software pll design using c2000 mcus single phase grid. Bart kuyken, jose antonio lazaro villa abstract silicon photonics has become a key technology in the design of devices for the next generation of wireless communications. A phase locked loop, pll, is basically of form of servo loop. Design and simulate analog phaselocked loop pll systems. A phaselocked loop reference spur modelling using simulink. An innovative design of adc and dac based phase locked. The stepwise elaboration of the model illustrates how simulink forms the basis a model based design where continuous verification of the model reduces.

As the name suggests, the phase locked loop operates by trying to lock to the phase of a very accurate input signal through the use of its negative feedback path. Design of highorder phaselock loops controller using. Speed control dc motor under varying load using phase. The nonlinear is difficult and complicated to design in the real world, but the linear control theory is well modeled. Introduction phaselock loops plls have been one of the basic building blocks in modern electronic systems. The model of twophase pll in matlab is shown in fig.

Phase locked loop operating principle and applications. In the light of the complexity of the conventional research and design of hmc833 wideband pll, this paper studies a design method of hmc833 loop filter based on simulink modeling in matlab. See whats new in the latest release of matlab and simulink. The phaselocked loop pll is a feedback system that forces the voltagecontrolled oscillator vco to replicate the input angle. The final model can serve a starting point for code generation both ansi c or synthesizable hdl. In this paper, a novel hilbert transform based phase detection system for alldigital. Through elaboration it ends at a model of an all digital and fixedpoint phaselocked loop. Design of highorder phaselock loops controller using simulink sitchai boonpiyathud 1, viboon chunkag 2, and pist liutanakul 1 department of electrical engineering, pathumwan institute of technology, thailand 2 department of electrical and computer engineering, king mongkuts university of technology north bangkok, thailand 1 introduction phaselocked loops plls have developed into. Check that the impairments are disabled in the pfd and charge pump tabs. The phase detector and programmable counter phaselocked loop system are implemented using a simple electronic circuit based on fpga to simplify the system design. Behavioral modeling and vhdl simulation of an alldigital. Abstract the report is based on the digital implementation of phase locked loop on fpga, the report covers the steps taken for implementing the proposed phase locked loop architecture on the fpga.

Plls and dlls cmos vlsi designcmos vlsi design 4th ed. Introduction to phase lock loop system modeling by wen li, senior system engineer, advanced analog product group and jason meiners, design manager, mixedsignal product group, texas instruments incorporated 1. In this introductory video tutorial i simulate a phase locked loop pll using ni awr visual system simulator vss. A pll is a feedback system that includes a vco, phase detector, and low pass filter within its loop. Various use cases at the system level can be simulated with the help of the matlab simulink based architecture model, such as has been done for the pga411q1 in figure 2.

The phaselocked loop pll block is a feedback control system that automatically adjusts the phase of a locally generated signal to match the phase of an input signal. The root locus for a typical loop transfer function is found as follows. The phase locked loop pll is an almost always used electronics circuit for communication systems like modulator, demodulator, frequency generator and frequency synthesizer etc. The basic design for the all digital phaselocked loop adpll used in this project has been derived from 2. Design of a phase locked loop for optical upconversion. Modeling and simulating an alldigital phase locked loop by russell mohn, epoch microelectronics inc. The building blocks used for the architecture are explained in detail as well as the software and technologies used for the project. Block diagram of pll parts of a pll pll design in simulink pll without divider design waveform pll with divider design waveform 4. The design procedure is based on the analogy between a typeii secondorder analog pll and an alldigital pll. Phase locked loop design fundamentals application note, rev. Phase locked loop tutorial file exchange matlab central.

A phase locked loop pll, when used in conjunction with other components, helps synchronize the receiver. Digital implementation of phase locked loop on fpga. Design and simulate analog phaselocked loop pll systems design a pll system starting from basic foundation blocks or from a family of reference architectures. Dessouky, design of a lowmismatch gain boosting charge pump for phaselocked loop, in international conference on microelectronics icm, dec.

Pdf design, simulation and validation of hmc833 loop filter. Introduction to phaselock loop system modeling by wen li, senior system engineer, advanced analog product group and jason meiners, design manager, mixedsignal product group, texas instruments incorporated 1. The basic components of the adpll are the phase detector, the loop filter and voltage controlled oscillator which is realized as the direct digital. The dynamic parameters of loop response, such as maximum overshoot, regulation time and steadystate error, are analyzed to verify the feasibility of hmc833 loop filter design. Use the data sheet of skyworks sky73411 to design the pll system to lock at 2. Apr 25, 2015 in this introductory video tutorial i simulate a phase locked loop pll using ni awr visual system simulator vss. The phaselocked loop is one of the basic blocks in modern electronic systems. Pdf phase noise analysis of charge pump phase locked loop. Razavi, design of analog cmos integrated circuits, chap.

System modeling in matlab simulink for pllbased resolver. Pdf simulation of phaselocked loops in phasefrequency. Flipflop counter pd this phase detector counts the number of highfrequency clock periods between the phase difference of v1 and v2. How to design and debug a phaselocked loop pll circuit.

Range 0 hz to 20000 hz in seven steps analog frontend. This article presents a simplified methodology for pll design and provides an. Figure 1 the basic structure of a phase locked loop. Drawing theory and practice together, it emphasizes electronics design tools and circuits, using specific design examples, addresses the practical details that lead to a working design. Behavioural modelling and simulation of pll based integer.

The charge pump phaselocked loop cppll is widely used for its. In this way the same theory can be applied to a phase locked loop as is applied to servo loops. There are two different types of plls linear and nonlinear. A bibliography is included for those who desire to pursue the theoretical aspect. Phase locked loops plls is a negative feedback system that matches the output frequency to the input frequency. This book introduces phaselocked loop applications and circuit design. Alldigital phase locked loop adpll is digital version of the pll. A phaselocked loop is a feedback system combining a voltage controlled oscillator vco and a phase comparator so connected that the oscillator maintains a constant phase angle. Since the scope of this article is practical in nature all theoretical derivations have been omitted, hoping to simplify and clarify the content. May 20, 2017 see whats new in the latest release of matlab and simulink. Pdf design, simulation and validation of hmc833 loop. Phaselocked loop design fundamentals application note, rev. This example shows how to design a simple phase locked loop pll using a reference architecture and validate it using pll testbench.

Behavioural modelling and simulation of pll based integer n. A phaselocked loop pll, when used in conjunction with other components, helps synchronize the receiver. Modeling and simulating an alldigital phase locked loop. Phase locked loop design free download as powerpoint presentation. For frequency synthesizers, the goal is to generate a clock at a higher speed to that of a slower reference clock. It is generally used in multimedia, communication and in many other applications. The filter extracts the dc component of the mixer output for the vco to use as a control voltage. Simulate and analyze the pll system to verify key performance metrics until you meet the system specifications. Designing and debugging a phaselocked loop pll circuit can be complicated, unless engineers have a deep understanding of pll theory and a logical development process. A phase locked loop is a feedback system combining a voltage controlled oscillator vco and a phase comparator so connected that the oscillator maintains a constant phase angle relative to a reference signal. Software phase locked loop design using c2000 microcontrollers for single phase grid connected inverter a functional diagram of a pll is shown in figure 1, which consists of a phase detect pd, a loop filter lpf, and a voltage controlled oscillator vco.

The phase locked loop pll block is a feedback control system that automatically adjusts the phase of a locally generated signal to match the phase of an input signal. Pdf phaselocked loop circuit design semantic scholar. Pdf simulation of phaselocked loops in phasefrequency domain. The dtype flipflops in the phase detector are represented in a simplified form using simulink blocks to define the behavior, and electrical components are used just at the interface. Design a pll system starting from basic foundation blocks or from a family of reference architectures. Implementing a pll design on silicon can consume months of development time and hundreds of thousands of dollars in fabrication costs. Nonzero initial conditions are applied to c1 and c2 in order to start the vco out of phase and test the tracking ability. The alldigital pll design inherits the frequency response and stability characteristics of the analog prototype pll. Digital phase detectors with a parallel output all of the phase detectors so far had only a 1bit or analog output. A pll is a frequency synthesizer system that produces an output signal whose phase depends on the phase of its input signal. Klingbeil and peter zipf has been improvised upon to come to the model as suggested in this project. Phase locked loop is a circuit which has an oscillator whose voltage is controlled by constantly adjusting to match with the phase of the frequency of the signal input 1. The phase locked loop pll is a feedback system that forces the voltagecontrolled.

An innovative design of adc and dac based phase locked loop. After the pll achieves lock, the output signal is locked in frequency and phase to the input signal both are oscillating at 1. The phase detector acts as a mixer, generating products at the sum and difference frequencies of its inputs. The design is carried out in simulink and then the code of the main blocks i.

In this webinar, learn how companies are shortening their timetomarket. This block is most appropriate when the input is a narrowband signal. In the charge pump tab, the output current is set to 2. Fundamentals of phase locked loops plls fundamental phase locked loop architecture. System modeling in matlab simulink for pllbased resolverto. Divides the vco output by the degree of the open loop gain feedback loop allows phase comparison pll in simulink questions. Design and analysis of second and third order pll at 450mhz. The report is based on the digital implementation of phase locked loop on fpga, the report covers the steps taken for implementing the proposed phase locked loop architecture on the fpga. Design and simulate analog phase locked loop pll systems design a pll system starting from basic foundation blocks or from a family of reference architectures. Implement phaselocked loop to recover phase of input. You can start by providing the specifications and impairments of each. Phase interpolator pll in simulink computer science essay. The charge pump phase locked loop cppll is widely used for its.

The goal of these virtual experiments on plls is to explore some basic design. The vco is implemented by combination of switching control circuit, singlephase igbt chopper, dc motor and rotary encoder. This book introduces phase locked loop applications and circuit design. Phase noise analysis of charge pump phase locked loop pll using simulink and design nonlinearities conference paper pdf available june 2018 with 474 reads how we measure reads. Design and implementation of fpga based linear all digital. Introduction phase lock loops plls have been one of the basic building blocks in modern electronic systems. Speed control dc motor under varying load using phaselocked.