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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CC1070-RTR1 датащи(PDF) 40 Page - Texas Instruments |
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CC1070-RTR1 датащи(HTML) 40 Page - Texas Instruments |
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40 / 57 page  CC1070 SWRS043 Page 40 of 58 best range. The length of the λ/4- monopole antenna is given by: L = 7125 / f where f is in MHz, giving the length in cm. An antenna for 868 MHz should be 8.2 cm, and 16.4 cm for 433 MHz. The antenna should be connected as close as possible to the IC. If the antenna is located away from the input pin the antenna should be matched to the feeding transmission line (50 Ω). For a more thorough background on antennas, please refer to Application Note AN003 SRD Antennas available from the Chipcon web site. 24 Configuration Registers The configuration of CC1070 is done by programming the 8-bit configuration registers. The configuration data based on selected system parameters are most easily found by using the SmartRF® Studio software. Complete descriptions of the registers are given in the following tables. After a RESET is programmed, all the registers have default values. The TEST registers also get default values after a RESET, and should not be altered by the user. Chipcon recommends using the register settings found using the SmartRF® Studio software. These are the register settings that Chipcon can guarantee across temperature, voltage and process. Please check the Chipcon web site for regularly updates to the SmartRF® Studio software. |
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