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AD8182 数据表(PDF) 11 Page - Analog Devices |
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AD8182 数据表(HTML) 11 Page - Analog Devices |
11 / 12 page AD8180/AD8182 –11– REV. B C1 ANALOG DEVICES AD8180/82 EVALUATION BOARD J1 IN0A J10 SEL A J2 IN1A J3 IN1B IN0B J4 J9 J8 EN A R10 R1 U1 R2 R3 SEL B J5 J6 EN B A B C2 R5 R9 R8 R4 Figure 28. Component Side Silkscreen Figure 29. Board Layout (Component Side) C3 C4 R6 Figure 30. Solder Side Silkscreen Figure 31. Board Layout (Solder Side) NOTES 1. AD8180R/AD8182R Evaluation Board inputs are configured with 50 Ω impedance striplines. This FR4 board type has the following stripline dimensions: 60-mil width, 12-mil gap between center conductor and outside ground plane “is- lands,” and 62-mil board thickness. 2. Several types of SMA connectors can be mounted on this board: the side-mount type, which can be easily installed at the edges of the board, and the top-mount type, which is placed on top. When using the top-mount SMA connector, it is recommended that the stripline on the outside 1/8" of the board edge be removed with an X-Acto blade as this unused stripline acts as an open stub, which could degrade the small- signal frequency response of the mux. 3. Input termination resistor placement on the evaluation board is critical to reducing crosstalk. Each termination resistor is oriented so that ground return currents flow counterclock- wise to a ground plane “island.” Although the direction of this ground current flow is arbitrary, it is important that no two input or output termination resistors share a connection to the same ground “island.” |
类似零件编号 - AD8182 |
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类似说明 - AD8182 |
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