PLL frequency synthesizers are widely used in telecommunication receivers and transmitters, as part of the frequency conversion block. They consist of a tunable oscillator and a programmable phase controlling loop. Current tendencies in PLL developm
Cyclone II, Cyclone II handbook, Cyclone II memory blocks, Cyclone II external memory interfaces, Cyclone II I/O standards, Cyclone II PCB layout, Cyclone II package information, Cyclone II PLLs, Cyclone II architecture, Cyclone II timing specificat
■ Chapter 1, Cyclone IV FPGA Device Family Overview ■ Chapter 2, Logic Elements and Logic Array Blocks in Cyclone IV Devices ■ Chapter 3, Memory Blocks in Cyclone IV Devices ■ Chapter 4, Embedded Multipliers in Cyclone IV Devices ■ Chapter 5, Clock
Fundamentally, an ideal charge pump combined with an ideal PFD provides an unbounded pull-in range (limited by the oscillator’s frequency range) and zero static phase error in charge pump PLLs
PHASE-LOCKED loops (PLLs) and delay-locked loops (DLLs) are often used in integrated circuits in order to compensate for clock distribution delays and to improve overall system timing. PLLs are also widely used in clock recovery and frequency synthe
Foreword Author's Biographical Information Part A—General Theory Chapter 1—Learning Algorithms for Neuro-Fuzzy Networks 1 Introduction 2 Neuro-Fuzzy Networks 2.1 The Conventional Fuzzy Model 2.2 From Fuzzy to Neuro-Fuzzy 2.3 Initialization 2.4 Train
官方教程The Phase-Locked Loop (PLL) is a closed-loop frequency-control system that compares the phase difference between the input signal and the output signal of a voltage-controlled oscillator (VCO). The negative feedback loop of the system forces the
Carrier loop architectures for tracking weak GPS signals.pdf, The performance of various carrier recovery loop architectures (phase lock loop (PLL), Doppler-aided PLL, frequency lock loop (FLL), and Doppler-aided FLL) in tracking weak GPS signals ar
