Datenblatt-Suchmaschine für elektronische Bauteile |
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SI4844 Datenblatt(PDF) 4 Page - Silicon Laboratories |
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SI4844 Datenblatt(HTML) 4 Page - Silicon Laboratories |
4 / 38 page AN602 4 Rev. 0.3 2.2. Default Band Selection Refer to Figure 1 for the band selection circuits. Selecting a band is to determine the resistance value from the band select pin to GND. To select a specific band, you need to ensure two things: Total value of resistance from the BAND to GND is equal to the value specified in Table 2 Total resistance from TUNE1 to GND is 500 k in 1% tolerance Some commonly used bands and their respective selection circuits are listed below for your quick reference. 2.2.1. Typical 12-band application Figure 1 and Table 3 illustrate the band and resistor value details for a typical 12-band application. Band31 SW6 9.2–9.9 MHz 347 Band32 SW7 11.45–12.25 MHz 357 Band33 SW8 11.6–12.2 MHz 367 Band34 SW9 13.4–14.2 MHz 377 Band35 SW10 13.57–13.87 MHz 387 Band36 SW11 15–15.9 MHz 397 Band37 SW12 15.1–15.8 MHz 407 Band38 SW13 17.1–18 MHz 417 Band39 SW14 17.48–17.9 MHz 427 Band40 SW15 21.2–22 MHz 437 Band41 SW16 21.45–21.85 MHz 447 Table 2. Band Sequence Definition (Continued) Band Number Band Name Band Frequency Range De-emphasis (FM) Channel Space (AM) Stereo LED on Conditions (Only for Si4840/44) Total R to GND (k , 1%) |
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