CASCADED MULTI-LOOP PHASE LOCKED LOOP (PLL) CLOCK SYNCHRONIZER TOLERANT TO FAILURE OF INTERMEDIATE LOOPS

Digtal Phase-locked Loop with Digital Loop Filter Comprising Noise Cancellation Path, and Method of Operating Same

CLOCK DUTY CYCLE CALIBRATION CIRCUIT, METHOD, AND CLOCK MULTIPLIER CIRCUIT

METHODS AND APPARATUS OF CHARGE-SHARING LOCKING WITH DIGITAL CONTROLLED OSCILLATORS

SEMICONDUCTOR DEVICE

LINEAR PREDICTION TO SUPPRESS SPURS IN A DIGITAL PHASE-LOCKED LOOP

Phase-locked loops (PLL), including time-to-digital converter (TDC) gain calibration circuits and related methods

PHASE-LOCKED LOOPS (PLL) INCLUDING DIGITALLY CONTROLLED OSCILLATOR (DCO) GAIN CALIBRATION CIRCUITS AND RELATED METHODS

Phase estimation for high frequency signals

Delta-sigma modulator with modified quantization error shaping

Apparatus and method for optimum loop gain calibration for clock data recovery and phase locked loop

CLOCK SYNTHESIZER

METHODS AND APPARATUS OF CHARGE-SHARING LOCKING WITH DIGITAL CONTROLLED OSCILLATORS

DOUBLY-BALANCED AUTO-ZERO LFPS AND SQUELCH DETECTION

Methods and systems for controlling frequency and phase variations for PLL reference clocks

Methods and systems for controlling frequency variation for a PLL reference clock

Automatic Hybrid Oscillator Gain Adjustor Circuit

METHOD FOR CHANGING A BITWIDTH OF AN FPGA CONFIGURATION

Low power quadrature phase detector

Linear prediction to suppress spurs in a digital phase-locked loop

Methods and apparatus of charge-sharing locking with digital controlled oscillators

All-digital phase-locked loop and calibration method thereof

Automatic Hybrid Oscillator Gain Adjustor Circuit

Apparatus and methods for digital fractional phase locked loop with a current mode low pass filter

Clock and data recovery circuit, memory storage device and signal generating method

Connection interface circuit, memory storage device and phase-locked loop circuit calibration method

Apparatus and method for improving lock time

Phase-locked loop (PLL) circuit and clock generator including sub-sampling circuit

Feedback control for accurate signal generation

Apparatus and method for improving lock time

Phase locked loop frequency shift keying demodulator using an auxiliary charge pump and a differential slicer

Frequency synthesis with accelerated locking

Fast settling ramp generation using phase-locked loop

PLL circuit

Adaptive bandwidth systems and methods

Fast settling sawtooth ramp generation in a phase-locked loop

Coherent phase-synchronizing circuit

Switched-capacitor loop filter

Synchronization system for power generation unit and method thereof

Oscillator

Self-adapting phase-locked loop filter for use in a read channel of a heat assisted magnetic recording drive

PLL circuit and operation method

FREQUENCY SYNTHESIZER CIRCUIT

Phase-rotating phase locked loop and method of controlling operation thereof

Autoconfigurable Phase-Locked Loop Which Automatically Maintains a Constant Damping Factor and Adjusts the Loop Bandwidth to a Constant Ratio of the Reference Frequency

Biological information measurement method and apparatus with variable loop filter

Phase-rotating phase locked loop and method of controlling operation thereof

Device and method for preventing lost synchronization

Semiconductor device and radio communication terminal mounting the same

Autoconfigurable phase-locked loop which automatically maintains a constant damping factor and adjusts the loop bandwidth to a constant ratio of the reference frequency

Clock generation system

Frequency synthesiser

Phase-locked loop

Frequency synthesizer

System and method for reducing lock time in a phase-locked loop

DELAY CIRCUIT

Local oscillator with injection pulling suppression and spurious products filtering

System and method for ESD protection

Frequency synthesizer

Phase-locked loop circuits and methods implementing multiplexer circuit for fine tuning control of digitally controlled oscillators

Phase synchronization circuit and receiver having the same

System and method for reducing lock time in a phase-locked loop

Transistor voltage-controlled oscillator and frequency synthesizer having the same

Synthesizer characterization in real time

Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop

Method and apparatus for providing a dual-loop phase lock loop

CONTINUOUS GAIN COMPENSATION AND FAST BAND SELECTION IN A MULTI-STANDARD, MULTI-FREQUENCY SYNTHESIZER

Phase Locked Loop with Stabilized Dynamic Response

Device and method for preventing lost synchronization

Noise canceling technique for frequency synthesizer

Device for generating counter signals representative of clock signals and device for reconstructing clock signals, for a packet-switched network

TUNABLE CAPACITANCE MULTIPLIER CIRCUIT

High resolution digitally controlled oscillator

Continuous gain compensation and fast band selection in a multi-standard, multi-frequency synthesizer

Communication semiconductor integrated circuit device and wireless communication system

Regulated adaptive-bandwidth PLL/DLL using self-biasing current from a VCO/VCDL

Adaptive delay-locked loops and methods of generating clock signals using the same

Digital PLL circuit and optical disk apparatus having digital PLL circuit

Sigma-delta fractional-N PLL with reduced frequency error

Current-mode gain-splitting dual-path VCO

Low jitter and/or fast lock-in clock recovery circuit

Wireless communication system

Local oscillator with injection pulling suppression and spurious products filtering

PLL circuit with self-selecting variable divide ratio

Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop

Phase locked loop circuit having reduced lock time

Communication semiconductor integrated circuit device and wireless communication system

Tunable high-speed frequency divider

Adaptive phase recovery

Digital expander for generating multiple analog control signals particularly useful for controlling an oscillator

Phase-locked loop having a bandwidth related to its input frequency

Circuit, control system, IC, transmitting and receiving apparatus, control method and program

Semiconductor integrated circuit for communication

Method to configure phase-locked loop dividing ratio

Method for synchronizing exporter and exciter clocks

Oscillator

Variable lock-in circuit for phase-locked loops

Z-state circuit for delay-locked loops

Damping coefficient variation mechanism in a phase locked loop

High speed clock and data recovery system

Integrated circuit television receiver arrangement

Local oscillator circuit

Programmable bandwidth during start-up for phase-lock loop

Programmable bandwidth and frequency slewing for phase-lock loop

Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling an oscillator

Adaptively extending tunable range of frequency in a closed loop

Regulated adaptive-bandwidth PLL/DLL using self-biasing current from a VCO/VCDL

Adaptive loop bandwidth circuit for a PLL

Frequency stabilized and phase noise suppressed microwave source using an IQ mixer to detect amplitude modulation and phase perturbation of the reflected signal

Low-pass filtering system having phase-locked loop

Bandwidth adjustability in an FMCW PLL system

Apparatus and methods for digital fractional phase locked loop with a current mode low pass filter