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Toolstick-BA Datasheet(PDF) 4 Page - Silicon Laboratories |
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Toolstick-BA Datasheet(HTML) 4 Page - Silicon Laboratories |
4 / 14 page Si4455-2WayLink-DEMO 4 Rev. 0.1 2.3. Frequency and Frequency Bands The RFstick provides RF matching solutions for all supported frequency bands. Different HW solutions are required for each frequency bands. Range test demo automatically reads required frequency band information from the on board EEPROM and selects the appropriate frequency range. Silicon Labs provides Si4455 Two Way Demo Link Kits for the following frequency bands: Middle band: 425–525 MHz High band: 850–960 MHz Range test demo provides four different selectable frequencies in all the supported bands. In case of custom parameters are stored the custom frequency can also be selected, but only in the defined frequency band. Table 2 lists the available frequencies. 2.3.1. Node Address Each node using the range test demo can select from 16 different addresses (0-15). Transmitter and receiver of the same link have to use the same addresses. It is advised to use only one link (one transmitter and one receiver) with the same address within close proximity, otherwise the different systems will disturb each other. 2.3.2. Modulation User can select from three types of modulation: GFSK with high precision TX crystal (TX: 30 ppm, RX: 30 ppm) GFSK (TX: 150 ppm, RX: 30 ppm) OOK 2.3.3. Data Rate User can select from three different data rates. In case of custom settings are stored the custom data rate can also be selected. Table 3 lists the available data rates. Table 2. Available Frequencies Freq. band Middle High 0 Custom Custom 1 433.92 MHz 867.84 MHz 2 434.15 MHz 868.30 MHz 3 458.50 MHz 917.00 MHz 4 475.00 MHz 950.00 MHz Table 3. Available Data Rates Modulation GFSK (both types) OOK 0 Custom Custom 1 9.6 kbps 2.4 kbps 2 38.4 kbps 9.6 kbps 3 128.0 kbps 20.0 kbps |
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