Semiconductor device and method for controlling amplitude of signal in the semiconductor device
AssigneeSamsung Electronics Co., Ltd.
InventorsSeung Jin Kim, Wan Kim, Seung Hyun Oh, Byung Ki Han
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Abstract
A semiconductor device and a method for controlling amplitude of signal in the semiconductor device are provided. The semiconductor device comprises a signal generator configured to output a sinewave, a comparator configured to compare a magnitude of the sinewave with a magnitude of a reference signal at a first timing corresponding to a timing control signal and to output a comparison result, and a control signal adjustor configured to adjust one of the current control signal and a timing control signal depending on the comparison result of the comparator.
Claims20
A semiconductor device comprising:
- a signal generator configured to output a sinewave, amplitude of the sinewave being adjusted depending on a current control signal supplied to the signal generator;
- a comparator configured to compare a magnitude of the sinewave provided from the signal generator with a magnitude of a reference signal at a first timing corresponding to a timing control signal and to output a comparison result;
- and
- a control signal adjustor configured to adjust one of the current control signal and the timing control signal depending on the comparison result of the comparator.
A semiconductor device comprising:
- a signal generator configured to output a sinewave;
- and
- an amplitude adjusting device configured to compare a magnitude of the sinewave with a magnitude of a reference signal at first timing before the sinewave reaches a phase of π/2, and to execute one of a first operation or a second operation on a basis of a comparison result thereof, the first operation including adjusting the magnitude of the sinewave, and the second operation including adjusting a timing of comparing the magnitude of the sinewave with the magnitude of the reference signal to a second timing different from the first timing to compare the magnitude of the sinewave with the magnitude of the reference signal.
A semiconductor device comprising:
- a reference clock generator configured to generate a reference clock, the reference clock generator comprising
- a signal generator configured to output a sinewave using a crystal oscillator, the sinewave having a frequency,
- a frequency adjusting device configured to adjust the frequency of the sinewave depending on a temperature change,
- an amplitude adjusting device configured to compare a magnitude of the sinewave with a magnitude of a reference signal at a predetermined comparison timing before a phase of the sinewave reaches π/2 to adjust the magnitude of the sinewave, and
- a clock generator configured to convert the sinewave into a square wave to generate the reference clock;
- and
- a functional module configured to receive the reference clock from the reference clock generator and to execute a predetermined operation using the reference clock.
Dependencies are inferred from the claim text.