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データシートサーチシステム |
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データシートサーチシステム |
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BM78 データシート(PDF) 40 Page - Microchip Technology |
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BM78 データシート(HTML) 40 Page - Microchip Technology |
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40 / 60 page  BM78 DS60001380B-Page 40 2016-2019 Microchip Technology Inc. Figure 6-6 illustrates the recommended mounting details for the BM78SPP05MC2/NC2 module and rec- ommended layout of the host PCB. A low-impedance ground plane will ensure best radio performance (best range, lowest noise). T h e Pin 30 (BT_RF) is a 50 Ohm connection to an external antenna connector, PCB trace antenna, or component (ceramic chip) antenna through a host PCB with 50 Ohm impedance and micro-strip trace. This trace can be extended to include passive parts for antenna attenuation padding, impedance matching, or to pro- vide test posts. It is recommended that the micro-strip trace must be as short as possible for minimum loss and better impedance matching. If the micro-strip trace is longer, it must be a 50 Ohm impedance. FIGURE 6-6: BM78SPP05MC2/NC2 HOST PCB MOUNTING SUGGESTION |
同様の部品番号 - BM78_V01 |
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同様の説明 - BM78_V01 |
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