Abstract:
A technology is provided for generating an output frequency. An input signal with a defined frequency may be received. The input signal may be split so that a first signal with the defined frequency of the input signal is received at a frequency multiplier and a second signal with the defined frequency of the input signal is received at a frequency mixer. The first signal may be multiplied by N, wherein N is a predefined integer. The first signal may be limited to a predetermined frequency and passed to the frequency mixer. The first signal and the second signal may be mixed to produce at least two mixed signals. A first output signal and a second output signal may be generated based on the at least two mixed signals.
Abstract:
An oscillator circuit may selectively switch between a normal mode and a low-power mode in response to a mode signal. During the normal mode, the oscillator circuit may employ a first amplifier configuration and a first capacitive loading to generate a high-accuracy clock signal having a relatively low frequency error. During the low power mode, the oscillator circuit may employ a second amplifier configuration and a second capacitive loading to generate a low-power clock signal using minimal power consumption. A compensation circuit may be used to offset a relatively high frequency error during the low-power mode.
Abstract:
A system comprising a first frequency divider to divide an input frequency of an input signal to generate a first signal having a first frequency and a first phase. Each of a plurality of second frequency dividers divides the input frequency of the input signal to generate a second signal having the first frequency and a second phase. A first switch includes a first end connected to a first node of the first frequency divider, and a second end connected to a second node of a first one of the plurality of second frequency dividers. A plurality of second switches include first ends connected to the second end of the first switch, and second ends respectively connected to the second nodes of the plurality of second frequency dividers other than the first one of the plurality of second frequency dividers.
Abstract:
Es wird ein Sinusoszillator (100) für eine induktive Sensorik offenbart. Der Sinusoszillator umfasst einen Entkoppler (120) und einen Tiefpassfilter (130), wobei mder Entkoppler (120) ausgebildet ist, um ein pulsweitenmoduliertes Signal als entkoppeltes Signal (150) an einem Ausgang des Entkopplers (120) bereitzustellen. Ein Eingang des Tiefpassfilters (130) ist mit dem Ausgang des Entkopplers (120) verbunden. Der Tiefpassfilter (130) ist ausgebildet ist, um unter Verwendung des invertierten Signals (150) an einem Ausgang des Tiefpassfilters (130) ein Sinussignal (1 60) für die induktive Sensorik (300) bereitzustellen. Der Sinusoszillator (100) umfasst ferner einen Mikrocontroller (110), der ausgebildet ist, an einem Pin des Mikrocontrollers (110) das pulsweitenmodulierte Signal (140) mit einer vorbestimmten Frequenz und einem vorbestimmten Tastverhältnis bereitzustellen.
Abstract:
A spread-spectrum clock generation circuit comprises at least one comparison element; at least one charge storage device arranged to couple an output of the at least one comparison element to an input of the at least one comparison element and arranged to set a first oscillation frequency of the spread-spectrum clock generation circuit; and a switched charge storage arrangement additionally arranged to couple an output of the at least one comparison element to an input of the at least one comparison element and arranged to set a second oscillation frequency of the spread-spectrum clock generation circuit.
Abstract:
Non-linear Transmission Line Device A non-linear transmission line device includes a magnetic element having at least one end profiled to reduce demagnetisation when the element is biased. The profile may be tapered, stepped, or smoothly curved. Also disclosed is a non-linear transmission device made up of a solid magnetic element, typically of flat rectangular form. (Fig. 6)
Abstract:
A resonator device comprising a piezoelectric material and at least one electrode, the device also provided with a material with a positive coefficient of stiffness, wherein the material is disposed in the device as an electrode or as a separate layer adjacent the piezoelectric material formed as one or more layers in the device. The material that performs the temperature compensating function is selected from the group consisting of ferromagnetic metal alloys, shape-memory metal alloys, and polymers, wherein the selected material has a temperature coefficient that varies with the relative amounts of the individual constituents of the compositions and wherein the composition is selected to provide the material with the positive coefficient of stiffness.