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At a cocktail party, there is a group of people talking at the same time. You have multiple microphones picking up mixed signals, but you want to isolate the speech of a single person. BSS can be used to separate the individual sources by using mixed signals. In the presence of noise, dedicated optimization criteria need to be used.
Mixed signal integrated circuit: the metal areas on the right-hand side are capacitors, on top of which are large output transistors; the left-hand side is occupied by the digital logic. A mixed-signal integrated circuit is any integrated circuit that has both analog circuits and digital circuits on a single semiconductor die.
An all-pass filter is a signal processing filter that passes all frequencies equally in gain, but changes the phase relationship among various frequencies. Most types of filter reduce the amplitude (i.e. the magnitude) of the signal applied to it for some values of frequency, whereas the all-pass filter allows all frequencies through without changes in level.
China’s vast manufacturing industry sent mixed signals last month about the health of the economy, fueling calls for Beijing to do more to boost growth just days before a key meeting of the ...
When the two signals are mixed, a "beat" frequency equal to the difference between the two frequencies is created. Adjusting the local oscillator frequency correctly puts the beat frequency in the audio range, where it can be heard as a tone in the receiver's earphones whenever the transmitter signal is present.
Gilbert cell mixers are an arrangement of transistors that multiplies the two signals. Switching mixers use arrays of field-effect transistors or vacuum tubes. These are used as electronic switches, to alternate the signal direction. They are controlled by the signal being mixed. They are especially popular with digitally controlled radios.
The problem is severe, since signals of different nature and strength interfere, thus affecting the overall performance, which demands higher clock rates and greater analog precisions. The primary mixed-signal noise coupling problem comes from fast-changing digital signals coupling to sensitive analog nodes.
Taking stock of equities as we head toward the end of April, investors are facing mixed messages from Wall Street. After a year that defied recession expectations, the first quarter of 2024 built ...