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PE4246 Datasheet(PDF) 5 Page - Peregrine Semiconductor Corp. |
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PE4246 Datasheet(HTML) 5 Page - Peregrine Semiconductor Corp. |
5 / 8 page Product Specification PE4246 ©2003-2010 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0090-09 │ www.psemi.com Page 5 of 8 Evaluation Kit The SPST Switch Evaluation Kit board was designed to ease customer evaluation of the PE4246 SPST switch. The RF1 port is connected through a 50 Ω transmission line to the top left SMA connector, J1. The RF2 port is connected through a 50 Ω transmission line to the top right SMA connector, J2. A through transmission line connects SMA connectors J3 and J4. This transmission line can be used to estimate the loss of the PCB over the environmental conditions being evaluated. The board is constructed of a two metal layer FR4 material with a total thickness of 0.031”. The bottom layer provides ground for the RF transmission lines. The transmission lines were designed using a coplanar waveguide model with trace width of 0.0476”, trace gaps of 0.030”, dielectric thickness of 0.028”, metal thickness of 0.0021” and εR of 4.3. Note that the predominate mode for these transmission lines is coplanar waveguide with a ground plane. J5 and J6 provide a means for controlling DC and digital inputs to the device. J6-1 is connected to the device VDD input. J5-1 is connected to the device CTRL input. J5-2 and J6-2 are GND connections. A decoupling capacitor (100 pF) is provided on both CTRL and VDD traces. It is the responsibility of the customer to determine proper supply decoupling for their design application. Removing these components from the evaluation board has not been shown to degrade RF performance. Figure 11. Evaluation Board Layouts Figure 12. Evaluation Board Schematic Peregrine Specification 102/0134 Peregrine Specification 101/0102 |
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