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SI4420-D1-FT Arkusz danych(PDF) 10 Page - List of Unclassifed Manufacturers |
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SI4420-D1-FT Arkusz danych(HTML) 10 Page - List of Unclassifed Manufacturers |
10 / 33 page Si4420 10 AC Characteristics (continued) Note 1: Not using a 10 MHz crystal is allowed but not recommended because all crystal referred timing and frequency parameters will change accordingly. Note 2: See the BER diagrams in the measurement results section for detailed information (Not available at this time). Note 3: See matching circuit parameters and antenna design guide for information. Note 4: Optimal antenna admittance/impedance: Si4420 Yantenna [S] Zantenna [Ohm] Lantenna [nH] 315 MHz 1.5E-3 - j5.14E-3 52 + j179 98.00 433 MHz 1.4E-3 - j7.1E-3 27 + j136 52.00 868 MHz 2E-3 - j1.5E-2 8.7 + j66 12.50 915 MHz 2.2E-3 - j1.55E-2 9 + j63 11.20 Note 5: Adjustable in 8 steps. Note 6: With selective resonant antennas (see: Application Notes available from www.silabs.com/integration). Note 7: During this period, commands are not accepted by the chip. For detailed information see the Reset modes section. Note 8: The crystal oscillator start-up time strongly depends on the capacitance seen by the oscillator. Using low capacitance and low ESR crystal is recommended. When designing the PCB layout keep the trace connecting to the crystal short to minimize stray capacitance. |
Podobny numer części - SI4420-D1-FT |
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Podobny opis - SI4420-D1-FT |
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