摘要:
An integrated circuit chip includes a semiconductor substrate; a first interconnection wire having a first portion and a second portion on the semiconductor substrate, wherein the second portion is separated from the first portion; a second interconnection wire situated under the first interconnection wire; a first conductive via electrically coupling the first portion with the second interconnection wire; a conductive layer situated between the first interconnection wire and the second interconnection wire; and a second conductive via electrically coupling the conductive layer with the second portion.
摘要:
An analog level shifter is provided, receiving an input voltage to generate an output voltage. In the analog level shifter, a NMOS transistor has a gate coupled to an input node where the input voltage is input. A resistance device comprises a first end coupled to source of the NMOS transistor, and a second end coupled to an output node where the output voltage is output. A current source is coupled to the output node, sinking a first current therefrom to ground.
摘要:
A modularized cooler includes the at least two heat radiator modules arranged in a stack, each heat radiator module having a set of radiation fins, heat-exchange tubes arranged in parallel and surrounded by the radiation fins, two locating plates holding the heat-exchange tubes in place, and a plurality of first bends and second bends respectively connected between every two adjacent heat-exchange tubes at two sides of the radiation fins and forming with the heat-exchange tubes a continuously S-shaped piping having an inlet and an outlet, and at least one connecting tubes that connect the S-shaped pipings of the heat radiator modules in series.
摘要:
A method for reducing a number of input terminals of an APC circuit is provided, where the APC circuit is arranged to control an optical pickup unit (OPU) within an optical storage device. The method includes: utilizing at least one switching module to ground one of a first and a second input terminals of the APC circuit at a time; and utilizing the switching module to electrically connect an APC front end within the APC circuit to a non-grounded input terminal of the first and the second input terminals, in order to receive a detection signal of a photo diode of the OPU through the non-grounded input terminal at the time. An associated APC circuit is also provided.
摘要:
An integrated circuit chip includes a semiconductor substrate; a first interconnection wire having a first portion and a second portion on the semiconductor substrate, wherein the second portion is separated from the first portion; a second interconnection wire situated under the first interconnection wire; a first conductive via electrically coupling the first portion with the second interconnection wire; a conductive layer situated between the first interconnection wire and the second interconnection wire; and a second conductive via electrically coupling the conductive layer with the second portion.
摘要:
A method for reducing a number of input terminals of an APC circuit is provided, where the APC circuit is arranged to control an optical pickup unit (OPU) within an optical storage device. The method includes: utilizing at least one switching module to ground one of a first and a second input terminals of the APC circuit at a time; and utilizing the switching module to electrically connect an APC front end within the APC circuit to a non-grounded input terminal of the first and the second input terminals, in order to receive a detection signal of a photo diode of the OPU through the non-grounded input terminal at the time. An associated APC circuit is also provided.
摘要:
A stereo decoder and a method therefor are provided. The stereo decoder receives a MPX signal from an FM demodulator, and comprises a first auto-calibration circuit, a band-pass filter, a second auto-calibration circuit, a slicer and a PLL circuit. The first auto-calibration circuit generates a first control signal. The band-pass filter generates the pilot signal by filtering the MPX signal with a center frequency set by the first control signal. The second auto-calibration circuit generates a second control signal. The slicer converts the pilot signal into a square wave signal. The PLL circuit comprises a voltage controlled oscillator for generating an oscillation frequency in response to the second control signal. The PLL circuit receives the square wave signal to generate the reference signal around the predetermined frequency in response to the oscillation frequency.
摘要:
A stereo decoding system comprises an oscillator, a bandpass filter, a PLL unit and a stereo decoder. The oscillator generates a first signal with a center frequency. The bandpass filter receives a stereo multiplexed signal and the first signal to filter out a pilot signal. The PLL unit receives the pilot signal to generate a PLL output signal. The stereo decoder receives the stereo multiplexed signal and the PLL output signal to separate a left channel signal and a right channel signal from the stereo multiplexed signal.
摘要:
A device for processing a radio frequency (RF) signal of an optical disk drive includes a high-pass (HP) filter, an RF variable gain amplifier (VGA), an RF analog-digital converter (ADC), and a digital module. The HP filter filters the RF signal and is capable of selectively utilizing one of a first cut-off frequency and a second cut-off frequency. The RF VGA amplifies the filtered RF signal. The RF ADC converts the amplified RF signal into a digital code. The digital module is capable of executing a first function and a second function with the digital code. The HP filter utilizes the first cut-off frequency when the digital module desires to execute the first function, and the HP filter utilizes the second cut-off frequency when the digital module desires to execute the second function.
摘要:
A stereo decoding system comprises an oscillator, a bandpass filter, a PLL unit and a stereo decoder. The oscillator generates a first signal with a center frequency. The bandpass filter receives a stereo multiplexed signal and the first signal to filter out a pilot signal. The PLL unit receives the pilot signal to generate a PLL output signal. The stereo decoder receives the stereo multiplexed signal and the PLL output signal to separate a left channel signal and a right channel signal from the stereo multiplexed signal.