Abstract:
A receiving circuit may include a decision feedback equalizer circuit and buffer. The buffer may be configured to receive an external signal and to generate an input signal. The decision feedback equalizer circuit may include a plurality of delay circuits, and may be configured to generate an internal signal based on the input signal, a strobe signal, and outputs of the plurality of delay circuits. The plurality of delay circuits may be reset based on whether or not the strobe signal has toggled or not between command signals.
Abstract:
A symbol interference cancellation circuit may include a CTLE (continuous time linear equalizer) configured for cancelling a first post cursor component of an input signal according to a first weight application signal, and generating a pre-interference-cancelled signal; an interference cancellation circuit configured for cancelling second to fourth post cursor components of the pre-interference-cancelled signal according to second to fourth weight application signals, a sampling signal and output signals of shift registers, and generating an interference-cancelled signal; a sampling circuit configured for sampling the interference-cancelled signal based on a clock signal, and outputting the sampled interference-cancelled signal as the sampling signal; and the shift registers configured for shifting the sampling signal by a predetermined cycle of a clock bar signal which has a phase opposite to the clock signal, shifting the sampling signal by a predetermined cycle of the clock signal, and thereby providing shifted signals to the interference cancellation circuit.
Abstract:
A sense amplifier driving device, and more particularly, a technology for improving the post overdriving operation characteristic of a semiconductor device. A sense amplifier driving device includes a driving signal generation block configured to compare a reference voltage set by a voltage trimming signal and a level of a power supply voltage, and generate a pull-up driving signal for controlling an operation of a sense amplifier; and a sense amplifier driving block configured to supply a driving voltage to a pull-up power line of the sense amplifier for an active operation period in correspondence to the pull-up driving signal, the driving signal generation block including a voltage divider configured to divide the power supply voltage, and output a divided voltage; and a voltage comparison section configured to compare the reference voltage and the divided voltage, and output a control signal for controlling an overdriving operation of the sense amplifier.
Abstract:
A sense amplifier driving device may include a sense amplifier driving block configured to supply a post overdriving voltage to a pull-up power line coupled to a sense amplifier, the post overdriving voltage supplied to the sense amplifier during a post overdriving operation period in correspondence to a pull-up driving signal. The sense amplifier driving device may include a driving signal generation block configured to compare a reference voltage, set by a voltage trimming signal, with a level of a power supply voltage, and generate the pull-up driving signal for controlling whether to perform a post overdriving operation.