Oscillator
AssigneeRohm Co., Ltd.
InventorShun Fukushima
Life of this patent
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Abstract
Provided is an oscillator arranged to output an oscillation signal of an oscillation frequency having an increasing and decreasing component that increases and decreases in one period, and an offset component for each period.
Claims14
An oscillator arranged to output an oscillation signal of an oscillation frequency having an increasing and decreasing component that increases and decreases in one period and an offset component for each period, the oscillator comprising:
- an oscillation circuit arranged to output the oscillation signal;
- a counter arranged to count the oscillation signal output from the oscillation circuit;
- and
- a DAC (D/A converter) having an input connected to an output of the counter, wherein
- the oscillation circuit generates the oscillation signal based on an output of the DAC,
- an input of the DAC has first bits indicating the increasing and decreasing component and second bits indicating the offset component, and
- the first bits are connected to the output of the counter via a logic circuit and/or directly.
An oscillator arranged to output an oscillation signal of an oscillation frequency having an increasing and decreasing component that increases and decreases in one period and an offset component for each period, the oscillator comprising:
- an oscillation circuit arranged to output a first oscillation signal;
- an oscillation portion arranged to output a second oscillation signal;
- a counter arranged to count the second oscillation signal;
- and
- a DAC (D/A converter) having an input connected to an output of the counter, wherein
- the oscillation circuit generates the first oscillation signal based on an output of the DAC,
- an input of the DAC has first bits indicating the increasing and decreasing component and second bits indicating the offset component, and
- the first bits are connected to the output of the counter via a logic circuit and/or directly.
Dependencies are inferred from the claim text.