Abstract: A signal processing system and related method are disclosed. The signal processing system includes a signal processing module, powered by a low supply voltage, for processing signals; and an interface module, coupled to the signal processing module, powered by a high supply voltage, for outputting signals generated from the signal processing module; wherein the interface module comprises a plurality of high-voltage functional blocks integrated therein, and each of the functional blocks is configured to perform a predetermined interface functionality. In this way, the bill-of-material (BOM) cost can be reduced.

Abstract: An apparatus and a muting circuit. The apparatus comprises an amplifier, a mute circuit, a pull-down circuit, and a power detection circuit. The amplifier receives a power supply voltage and a common mode voltage, and amplifies an audio input signal to generate an audio output signal. The mute circuit, coupled to the amplifier, conducts the audio output signal to about ground level upon receiving a mute signal. The pull-down circuit, coupled to the amplifier, pulls the common mode voltage to about ground level upon receiving a pull-down signal. The power detection circuit, coupled to the mute circuit and the pull-down circuit, detects power-up or power-down of the power supply voltage, and generates the mute signal and a pull-down signal according to the power-up or power-down operation.

Abstract: A digital to analog converter including a first capacitor, a second capacitor, an operational amplifier, and a switch is disclosed. During a first period, the first capacitor stores a first voltage and the second capacitor stores a second voltage. The operational amplifier comprises an input and an output. The switch parallels the first and the second capacitors with the operational amplifier at the input and output according to a digital signal during a second period.

Abstract: The present invention discloses a PCI extended function interface and PCI device using such an interface. The PCI extended function interface is suitable for use in a PCI device comprising a master device and at least one slave device. The PCI extended function interface comprises at least one connecting port and a first circuit. The slave device is coupled to a corresponding connecting port and the PCI extended function interface transmits a control signal through the connecting port to control the operation of a corresponding slave device. The first circuit is used to determine the configuration space.

Abstract: A peripheral device for use in a system including a storage unit coupled to a local bus. The peripheral device has a shared bus interface provided for interfacing with the storage unit and the local bus. The peripheral device also includes core logic coupled to the shared bus interface. When the core logic receives a read/write command with respect to the storage unit through the local bus, it causes the local bus to enter at least a wait state and performs a corresponding data transfer between the peripheral device and the storage unit through the shared bus interface during the wait state. In particular, the peripheral device shares the shared bus interface with the storage unit so as to transfer data.

Abstract: A peripheral device for use in a system including a storage unit coupled to a local bus. The peripheral device has a shared bus interface provided for interfacing with the storage unit and the local bus. The peripheral device also includes core logic coupled to the shared bus interface. When the core logic receives a read/write command with respect to the storage unit through the local bus, it causes the local bus to enter at least a wait state and performs a corresponding data transfer between the peripheral device and the storage unit through the shared bus interface during the wait state. In particular, the peripheral device shares the shared bus interface with the storage unit so as to transfer data.

Abstract: The present invention discloses a PCI extended function interface and PCI device using such an interface. The PCI extended function interface is suitable for use in a PCI device comprising a master device and at least one slave device. The PCI extended function interface comprises at least one connecting port and a first circuit. The slave device is coupled to a corresponding connecting port and the PCI extended function interface transmits a control signal through the connecting port to control the operation of a corresponding slave device. The first circuit is used to determine the configuration space.