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CC2420-RTB1 Datasheet(PDF) 2 Page - Texas Instruments |
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CC2420-RTB1 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 92 page CC2420 SWRS041B Page 2 of 89 Table of contents 1 Abbreviations_________________________________________________________________5 2 References ___________________________________________________________________6 3 Features _____________________________________________________________________7 4 Absolute Maximum Ratings _____________________________________________________8 5 Operating Conditions __________________________________________________________8 6 Electrical Specifications ________________________________________________________9 6.1 Overall ___________________________________________________________________9 6.2 Transmit Section ___________________________________________________________9 6.3 Receive Section ___________________________________________________________10 6.4 RSSI / Carrier Sense _______________________________________________________11 6.5 IF Section _______________________________________________________________11 6.6 Frequency Synthesizer Section _______________________________________________11 6.7 Digital Inputs/Outputs ______________________________________________________12 6.8 Voltage Regulator _________________________________________________________13 6.9 Battery Monitor ___________________________________________________________13 6.10 Power Supply ____________________________________________________________13 7 Pin Assignment ______________________________________________________________15 8 Circuit Description ___________________________________________________________17 9 Application Circuit ___________________________________________________________19 9.1 Input / output matching _____________________________________________________19 9.2 Bias resistor ______________________________________________________________19 9.3 Crystal __________________________________________________________________19 9.4 Voltage regulator __________________________________________________________19 9.5 Power supply decoupling and filtering _________________________________________19 10 IEEE 802.15.4 Modulation Format ____________________________________________24 11 Configuration Overview _____________________________________________________25 12 Evaluation Software ________________________________________________________26 13 4-wire Serial Configuration and Data Interface __________________________________27 13.1 Pin configuration __________________________________________________________27 13.2 Register access____________________________________________________________27 13.3 Status byte _______________________________________________________________28 13.4 Command strobes _________________________________________________________29 13.5 RAM access______________________________________________________________29 13.6 FIFO access ______________________________________________________________31 13.7 Multiple SPI access ________________________________________________________31 14 Microcontroller Interface and Pin Description __________________________________32 14.1 Configuration interface _____________________________________________________32 14.2 Receive mode ____________________________________________________________33 14.3 RXFIFO overflow _________________________________________________________33 14.4 Transmit mode____________________________________________________________34 14.5 General control and status pins _______________________________________________35 15 Demodulator, Symbol Synchroniser and Data Decision ___________________________35 16 Frame Format _____________________________________________________________36 16.1 Synchronisation header _____________________________________________________36 16.2 Length field ______________________________________________________________37 16.3 MAC protocol data unit_____________________________________________________37 16.4 Frame check sequence ______________________________________________________38 |
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