phase/frequency-locked loop
High Frequency Phase Detector in Phase Locked Loop
... the phase detector. Here the phase of the signals from the VCO and the incoming reference signal are compared and a resulting difference or error voltage is ...the phase difference between the two ...
13
Frequency and phase locking of a CW magnetron:with a digital phase locked loop using pushing characteristics
... differing phase advances per ...and phase velocities, they are referred to as ...their phase advance per ...a phase advance of 180 degrees per cells and hence the field alternates on each ...
198
Design of CMOS Phase Locked Loop
... of phase detector and filter will be zero, during this stage VCO will be in free running stage, which would be the normal operating frequency of ...reference frequency is applied then the ...
7
Design of a PLL with Dual VCO’S for the Application of Bluetooth
... the frequency at which the device receives the transmitted ...time, phase noise, channel spacing, output frequency range and power ...the frequency synthesizer is ...Fractional-N phase ...
6
Design Technique of Phase-Locked Loop Frequency Synthesizer in CMOS Technology: A Review
... its phase noise is ...in phase noise use simple routing and minimizes interconnect capacitances, parasitic resistances of interconnects, and provide inherent common-centered characteristic for high ...
5
A Fast Locking Digital Phase-Locked Loop using Frequency Difference Stage
... The additional current is provided by a programmable charge pump (PCP); its output current depends on the output code from the frequency difference stage (FDS). This code represents the difference between the ...
6
STUDY AND IMPLEMENTATION OF PHASE LOCKED LOOP
... A phase locked loop system is negative f/b system where an signal which generate oscillator is phase and frequency locked to a reference ...High frequency crystals are ...
5
Volume 3, Issue 3, March 2014 Page 528
... Phase locked loop is an electronic circuit that controls an oscillator so that it maintains a constant phase angle ...the frequency of an input or reference ...whose phase is ...
6
Title: Analysis and Design of a Three-Phase PLL Structure
... A phase-locked loop or phase lock loop (PLL) is just a control system that generates an output signal whose phase relates to the phase of an input ...variable ...
6
Analysis of Phase Noise Profile of a 1.1 GHz Phase-locked Loop
... is locked at 212.1 MHz. The VCO produces a wide range of output frequency as the varactor controlled LC circuit is used which changes the equivalent parallel resistance of the LC circuit in a wide range ...
5
Analysis, Modeling and Simulation of a Low Phase Noise Frequency Synthesizer for High Sensitivity FM Receiver
... digital frequency synthesizer Indirect synthesizers operate by “locking” the output of a frequency source usually a VCO to that of another “cleaner” source known as the reference ...A ...
11
Energy Efficient and High Speed Charge-Pump Phase Locked Loop
... conventional phase/frequency detector may contain the periodical step and pulse functions which are ...proposed phase/frequency detector are shown in ...
7
Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)
... low phase noise [48, 49] or large tunability [15, ...a frequency stability of 1 × 10 −10 for averaging time of 1000 ...the locked frequency the standard deviation shows little change and close ...
16
A Digital Phase Locked Loop Speed Control of Three Phase Induction Motor Drive: Performances Analysis
... the frequency of the periodic signal at its ...the phase detector. When the loop is locked on the input signal, the frequency of the VCO output is exactly equal to that of a ...the ...
8
Design and Implementation of Digital Demodulator for Frequency Modulated CW Radar (RESEARCH NOTE)
... of frequency, delay locked loop (DLL) [14, 15] or direct digital frequency synthesizers (DDFS) using various methods are being used ...[16-20]. Phase detection in communication receiver ...
10
Phase Locked Loop Test Methodology
... the loop filter node can be considered as the critical controlling node of the ...output frequency, this action will be observed as PLL output ...correct loop filter operation is essential if the PLL ...
38
Simulation of Analog Phase-locked Loop for Frequency Hopping Application
... The frequency hopping spread spectrum (FHSS) technique has become a subject of interest, as it has been applied in many ...of phase-locked loops (PLL) and FHSS have been analyzed in details in the ...
5
VLSI BASED LOW POWER FRACTIONAL-N PHASE LOCKED LOOP FREQUENCY SYNTHESIZER FOR BLUETOOTH
... of phase lock loop is the fractional-N frequency synthesizer using Sigma-Delta modulation technique which offers a short switching time and a good noise reduction ...A loop filter offers the ...
7
ANALYTICAL STUDY OF ANALOG PHASE-LOCKED LOOP IN MESSAGE SIGNALS TRANSMISSION
... A phase-locked loop is a criticism framework consolidating a voltage controlled oscillator and a phase comparator so associated that the oscillator frequency (or phase) precisely ...
8
A Review of Phase Locked Loop
... For phase frequency detector, a different class of digital filters called sequential filters are employed [4]. An example of sequential filter is depicted in figure 7. The N before M filter operates as ...
7