Abstract:
An oscillator includes a resonator element; and a semiconductor device including an oscillation circuit which outputs an oscillation signal by oscillating the resonator element, a temperature compensation circuit which compensates for temperature characteristics of a frequency of the oscillation signal, and a first surface in which a terminal that is electrically connected to the resonator element is disposed. The semiconductor device overlaps the resonator element in a planar view. Frequency deviation of the oscillation signal, which is compensated for by the temperature compensation circuit, is greater than or equal to −150 ppb and smaller than or equal to +150 ppb in a temperature range from −5° C. to +85° C.
Abstract:
A temperature compensated oscillator includes a resonator element, an oscillation circuit, and a temperature compensation circuit. Assuming an observation time as T, an MTIE value at 0.1 s
Abstract:
A semiconductor integrated circuit includes a semiconductor substrate on which an oscillation circuit that generates an oscillation signal by oscillating a resonation element, and a plurality of output circuits that outputs signals based on the oscillation signal, are integrated. A package contains the semiconductor integrated circuit and the resonation element. In the semiconductor integrated circuit, an operation of a first output circuit and an operation of a second output circuit, among a plurality of output circuits, are controlled independently from each other.
Abstract:
A temperature compensated oscillator, includes resonator, first case that includes base and lid and accommodates resonator, electronic component that includes oscillation and temperature compensation circuit, and second case that accommodates first case and electronic component, wherein electronic component is bonded to first case's base, and wherein in a case where temperature range of ±5° C. is changed with six minute cycle on basis of reference temperature, wander performance satisfies condition that MTIE value of 0 s
Abstract:
A temperature-compensated oscillator includes a resonator element, an oscillating circuit, and a temperature compensation circuit, and in a case of varying temperature in a temperature range of ±5° C. centered on a reference temperature in intervals of 6 minutes, and assuming observation period as τ, a wander performance fulfills a condition that an MTIE value is equal to or shorter than 6 ns in a range of 0 s
Abstract:
An oscillation module includes a SAW filter and a package adapted to house the SAW filter. One end of the SAW filter is firmly fixed to the package.
Abstract:
A temperature-compensated piezoelectric oscillator as an oscillator includes a piezoelectric resonator incorporating a resonator element, an electronic component (IC) as a circuit element having a function of driving the resonator element and a thermosensor, and a wiring board provided with a conductor film, and the piezoelectric resonator element and the electronic component (IC) are disposed side by side in an area where the conductor film is disposed.
Abstract:
A surface acoustic wave resonator includes a quartz crystal substrate with preselected Euler angles, and an IDT that is provided on the quartz crystal substrate, that includes a plurality of electrode fingers, and that excites a stop band upper end mode surface acoustic wave. Inter-electrode finger grooves are provided in the quartz crystal substrate between the electrode fingers in a plan view. When a wavelength of the surface acoustic wave is λ, a first film thickness of the electrode finger is H, and a first depth of the inter-electrode finger groove is G, and when a line occupation rate of convex portions of the quartz crystal substrate disposed between the inter-electrode finger grooves is ηg, and a line occupation rate of the electrode fingers disposed on the convex portions is ηe, the following relationships are satisfied 0.0407λ≦G+H; and ηg>ηe.
Abstract:
A temperature-compensated oscillator includes a resonator element, an oscillating circuit, and a temperature compensation circuit, and a frequency deviation with respect to a frequency at a time point when power supply starts is within a range of ±8 ppb at a time point when 10 seconds elapse from when the power supply starts, within a range of ±10 ppb at a time point when 20 seconds elapse from when the power supply starts, and within a range of ±10 ppb at a time point when 30 seconds elapse from when the power supply starts.
Abstract:
A method of manufacturing an oscillator including a resonator element, an oscillation circuit which outputs an oscillation signal by oscillating the resonator element, a temperature compensation circuit which compensates for temperature characteristics of a frequency of the oscillation signal in a desired temperature range, includes a first temperature compensation adjustment step in which the frequency is measured at multiple temperatures, and first temperature compensation data is calculated based on a relationship between temperature and the frequency; and performing a second temperature compensation adjustment step in which, after the first temperature compensation adjustment step, the frequency that is obtained by performing temperature compensation by the temperature compensation circuit based on the first temperature compensation data is measured at multiple temperatures, and second temperature compensation data is calculated based on a relationship between temperature and the frequency.