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LM4811 bảng dữ liệu(PDF) 9 Page - Unisonic Technologies |
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9 / 9 page LM4811 Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 9 of 9 www.unisonic.com.tw QW-R502-560.a EXTERNAL COMPONENTS DESCRIPTION PIN NO. PIN NAME DESCRIPTION 1 CI This is the input coupling capacitor. It blocks the DC voltage at, and couples the input signal to, the amplifier’s input terminals. C also creates a highpass filter with the internal input resistor, RI, at fC =1/(2πRICI). The minimum value of RI is 33kΩ. Refer to the section, Proper Selection of External Components, for an explanation of how to determine the value of CI. 2 CS This is the supply bypass capacitor. It provides power supply filtering. Refer to the Application Information section for proper placement and selection of the supply bypass capacitor. 3 CB This is the BYPASS pin capacitor. It provides half-supply filtering. Refer to the section, Proper Selection of External Components , for information concerning proper placement and selection of CB. 4 CO This is the output coupling capacitor. It blocks the DC voltage at the amplifier’s output and it forms a high pass filter with RL at fO = 1/(2πRLCo ) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. |
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