摘要:
An integrated circuit includes a first current source. A second current source is electrically coupled with the first current source via a conductive line. A switch circuit is coupled between the first current source and the second current source. A first circuit is coupled between a first node and a second node. The first node is disposed between the first current source and the switch circuit. The second node is coupled with the first current source. The first circuit is configured for substantially equalizing voltages on the first node and the second node. A second circuit is coupled between a third node and a fourth node. The third node is disposed between the second current source and the switch circuit. The fourth node is disposed coupled with the second current source. The second circuit is configured for substantially equalizing voltages on the third node and the fourth node.
摘要:
A method of operating a charge pump of a phase-lock assistant circuit includes determining a first relative timing relationship of a phase of a data signal to a phase of a first phase clock. A second relative timing relationship of the phase of the data signal to a phase of a second phase clock is determined, and the first and second phase clocks have a 45° phase difference. An up signal and a down signal are generated in response to the first relative timing relationship and the second relative timing relationship. The charge pump circuit is driven according to the up signal and the down signal.
摘要:
A circuit including a first circuit configured to receive an input signal and first, third and fifth phase clocks of a clock, and generate a first early signal indicating the clock is earlier than the input signal and a first late signal indicating the clock is later than the input signal. The circuit further includes a second circuit configured to receive an input signal and second, a fourth and sixth phase clocks of the clock, and generate a second early signal indicating the clock is earlier than the input signal and a second late signal indicating the clock is later than the input signal. The circuit further includes a third circuit configured to generate a first increase signal. The circuit further includes a fourth circuit configured to generate a first decrease signal.
摘要:
Some embodiments regard a circuit comprising: a first circuit configured to lock a frequency of an output clock to a frequency of a reference clock; a second circuit configured to align an input signal to a phase clock of the output clock; a third circuit configured to use a first set of phase clocks of the output clock and a second set of phase clocks of the output clock to improve alignment of the input signal to the phase clock of the output clock; and a lock detection circuit configured to turn on the first circuit when the frequency of the output clock is not locked to the frequency of the reference clock; and to turn off the first circuit and to turn on the second circuit and the third circuit when the frequency of the output clock is locked to the frequency of the reference clock.
摘要:
An integrated circuit includes a first current source. A second current source is electrically coupled with the first current source via a conductive line. A switch circuit is coupled between the first current source and the second current source. A first circuit is coupled between a first node and a second node. The first node is disposed between the first current source and the switch circuit. The second node is coupled with the first current source. The first circuit is configured for substantially equalizing voltages on the first node and the second node. A second circuit is coupled between a third node and a fourth node. The third node is disposed between the second current source and the switch circuit. The fourth node is disposed coupled with the second current source. The second circuit is configured for substantially equalizing voltages on the third node and the fourth node.
摘要:
An integrated circuit includes a differential amplifier. The differential amplifier includes at least one output end. A circuit is coupled with the at least one output end of the differential amplifier. The circuit does not include a resistor-capacitor (RC) network and is configured for providing a negative impedance to the differential amplifier for adjusting a direct current (DC) gain of the integrated circuit.
摘要:
A voltage regulator includes an output stage electrically coupled with an output end of the voltage regulator. The output stage includes at least one transistor having a bulk and a drain. At least one back-bias circuit is electrically coupled with the bulk of the at least one transistor. The at least one back-bias circuit is configured to provide a bulk voltage, such that the bulk and the drain of the at least one transistor are reverse biased during a standby mode of a memory array that is electrically coupled with the voltage regulator.
摘要:
An integrated circuit includes a first PMOS transistor, where its drain is arranged to be coupled to a voltage output, and its source is coupled to the drain of a second PMOS transistor. The source of the second PMOS transistor is arranged to be coupled to a high power supply voltage. The source and drain of a MOS capacitor are coupled to the source of the first PMOS transistor. The drain of an NMOS transistor is coupled to the drain of the first PMOS transistor. The integrated circuit is configured to receive a voltage input to generate the voltage output having a maximum voltage higher than the voltage input. The gate oxide layer thickness of the MOS capacitor is less than that of the first PMOS transistor.
摘要:
A circuit has a first circuit module including a first resistor and first and second transistors coupled in parallel with the first resistor. The first resistor and the first and second transistors are coupled together at a first node. An equivalent resistance across the first circuit module increases as a voltage of the first node is increased from a first voltage to a second voltage, and the equivalent resistance across the first circuit module decreases as the voltage of the first node is increased from the second voltage to a third voltage.
摘要:
A driver includes a first driver stage having at least one input node and at least one first output node. The first driver stage includes a T-coil structure that is disposed adjacent to the at least one first output node. The T-coil structure includes a first set of inductors each being operable to provide a first inductance. A second set of inductors are electrically coupled with the first set of inductors in a parallel fashion. The second set of inductors each are operable to provide a second inductance. A second driver stage is electrically coupled with the first driver stage.