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MAX9218 27-Bit, 3MHz-to-35MHz DC-Balanced LVDS Deserializer General Description
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... See Figure 12 for calculating the capacitor values for AC-coupling, depending on the parallel clock frequency. The plot shows capacitor values for two- and fourcapacitor-per-link systems. For applications using less than 18MHz clock frequency, use 0.1µF capacitors. ...
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... be done at one of the input op-amps. Complete instrumentation amplifier integrated circuits based on this standard instrumentation amplifier configuration are available from several manufacturers. All components except R1, which determines the gain of the amplifier, and the potentiometer for offset ...
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Nominal impedance



Nominal impedance in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of:The nominal value of the characteristic impedance of a cable or other form of transmission line.The nominal value of the input, output or image impedance of a port of a network, especially a network intended for use with a transmission line, such as filters, equalisers and amplifiers.The nominal value of the input impedance of a radio frequency antennaThe actual impedance may vary quite considerably from the nominal figure with changes in frequency. In the case of cables and other transmission lines, there is also variation along the length of the cable, if it is not properly terminated. It is usual practice to speak of nominal impedance as if it were a constant resistance, that is, it is invariant with frequency and has a zero reactive component, despite this often being far from the case. Depending on the field of application, nominal impedance is implicitly referring to a specific point on the frequency response of the circuit under consideration. This may be at low-frequency, mid-band or some other point and specific applications are discussed in the sections below.In most applications, there are a number of values of nominal impedance that are recognised as being standard. The nominal impedance of a component or circuit is often assigned one of these standard values, regardless of whether the measured impedance exactly corresponds to it. The item is assigned the nearest standard value.
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