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Texas Instruments Inc. (TI) introduced six- and four-channel electromagnetic interference (EMI) filters for LCD display applications, the TPD6F202 and TPD4F202. Electrostatic discharge (ESD) ratings exceed the IEC 61000-4-2 specification by at least three times for contact discharge. Both are 67 percent better than the specification for air-gap discharge. This allows the signal to be transmitted through the device while it filters out the higher frequency RF and electromagnetic interferences (RF/EMI) that can appear as lines on a screen, especially LCD displays. The devices' compact size allows designers to optimize previously wasted space under connectors. Targeted applications include LCD display interfaces and anything that needs RF/EMI filtering on data lines, such as portable applications, cell phones, LCD interfaces and video connections.
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