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HSMP-4820-BLKG Datasheet(PDF) 5 Page - AVAGO TECHNOLOGIES LIMITED |
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HSMP-4820-BLKG Datasheet(HTML) 5 Page - AVAGO TECHNOLOGIES LIMITED |
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5 / 10 page  5 Typical Applications for HSMP-482x Low Inductance Series Microstrip Series Connection for HSMP-482x Series In order to take full advantage of the low inductance of the HSMP-482x series when using them in series applications, both lead 1 and lead 2 should be connected together, as shown in Figure 14. Figure 16. Equivalent Circuit. Co-Planar Waveguide Shunt Connection for HSMP-482x Series Co-Planar waveguide, with ground on the top side of the printed circuit board, is shown in Figure 17. Since it eliminates the need for via holes to ground, it offers lower shunt parasitic inductance and higher maximum attenuation when compared to a microstrip circuit. See AN1050 for details. 50 OHM MICROSTRIP LINES PAD CONNECTED TO GROUND BY TWO VIA HOLES 12 3 0.3 nH 0.3 nH 0.8 pF 1.5 nH 1.5 nH 0.8 pF 0.75 nH Figure 13. Internal Connections. Figure 14. Circuit Layout. Microstrip Shunt Connections for HSMP-482x Series In Figure 15, the center conductor of the microstrip line is interrupted and leads 1 and 2 of the HSMP-482x diode are placed across the resulting gap. This forces the 0.5 nH lead inductance of leads 1 and 2 to appear as part of a low pass filter, reducing the shunt parasitic inductance and increasing the maximum available attenuation. The 0.3 nH of shunt inductance external to the diode is created by the via holes, and is a good estimate for 0.032" thick material. Figure 15. Circuit Layout, HSMP-482x Limiter. Figure 17. Circuit Layout. Figure 18. Equivalent Circuit. Co-Planar Waveguide Groundplane Groundplane Center Conductor |
Similar Part No. - HSMP-4820-BLKG |
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