Apparatus and method for receiving inputted signal
AssigneeHynix Semiconductor Inc.
InventorKyung-Hoon Kim
Life of this patent
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Abstract
An input signal receiver of a semiconductor device includes a gain control unit for outputting a gain control signal and a variable gain amplifier for amplifying external clock in response to the gain control signal, wherein the gain control signal determines a gain of the variable gain amplifier. Further, the input signal receiver includes a buffer whose input terminal is connected to an output terminal of the variable gain amplifier and output terminal is connected to another element of the semiconductor device.
Claims22
An input signal receiver for use in a semiconductor device, comprising:
- a gain controlling means for outputting a gain control signal;
- and
- a variable gain amplifying means for amplifying external input signals in response to the gain control signal,
- wherein the gain control signal determines a gain of the variable gain amplifying means.
An semiconductor device for compensating an input signal, comprising:
- a clock variable gain amplifying means for amplifying an external clock and an external reverse clock based on a gain control signal;
- an internal clock generator for generating an internal clock by using an output signal from the clock variable gain amplifying means;
- an input variable gain amplifying means for receiving the input signal through an input terminal of the semiconductor device and amplifying the input signal based on the gain control signal;
- a buffering means for buffering an output signal from the input variable gain amplifying means in response to the internal clock;
- and
- a gain control unit for outputting the gain control signal for determining a gain of the clock variable gain amplifying means and the input variable gain amplifying means.
A method for sensing and compensating an input signal comprising steps of:
- (a) determining a level of an input signal corresponding to a peak point level of an external clock;
- (b) generating a gain control signal with a level corresponding to the level of the input signal;
- and
- (c) amplifying the input signal as much as a gain based on the gain control signal.
Dependencies are inferred from the claim text.