摘要:
A drive circuit is provided with a charge pump including a capacitor. The capacitor of the charge pump is configured to be charged in the first stage and to be connected with the gate terminal of the switching device in the second stage. The charge pump is configured to be able to adjust a charging voltage charged in the capacitor according to an order signal.
摘要:
Provided is a phase calibration circuit to suppress degradation of transfer efficiency when reading data from a memory card. The phase calibration circuit includes a receive clock generator that generates clock signals including a first clock signal (FCS) with a phase shifted with respect to a base clock signal, a second clock signal with a phase advanced with respect to the FCS, and a third clock signal with a phase delayed with respect to the FCS; a determination unit that acquires data blocks, each of which including a data body and detection information for detecting an error, in accordance with the clock signals, determines whether an error occurs by using the detection information of the data blocks, and outputs determination results; and a phase adjustment unit that instructs the receive clock generator to adjust a phase of the FCS depending on the determination results.