CC2420
Table of contents
1Abbreviations_________________________________________________________________5
2References ___________________________________________________________________6
3Features _____________________________________________________________________7
4Absolute Maximum Ratings _____________________________________________________8
5Operating Conditions __________________________________________________________8
6Electrical Specifications ________________________________________________________9
6.1Overall ___________________________________________________________________9
6.2Transmit Section ___________________________________________________________9
6.3Receive Section ___________________________________________________________10
6.4RSSI / Carrier Sense _______________________________________________________11
6.5IF Section _______________________________________________________________11
6.6Frequency Synthesizer Section _______________________________________________11
6.7Digital Inputs/Outputs ______________________________________________________12
6.8Voltage Regulator _________________________________________________________13
6.9Battery Monitor ___________________________________________________________13
6.10Power Supply ____________________________________________________________13
7Pin Assignment ______________________________________________________________15
8Circuit Description ___________________________________________________________17
9Application Circuit ___________________________________________________________19
9.1Input / output matching _____________________________________________________19
9.2Bias resistor ______________________________________________________________19
9.3Crystal __________________________________________________________________19
9.4Voltage regulator __________________________________________________________19
9.5Power supply decoupling and filtering _________________________________________19
10IEEE 802.15.4 Modulation Format ____________________________________________24
11Configuration Overview _____________________________________________________25
12Evaluation Software ________________________________________________________26
13
13.1Pin configuration __________________________________________________________27
13.2Register access____________________________________________________________27
13.3Status byte _______________________________________________________________28
13.4Command strobes _________________________________________________________29
13.5RAM access______________________________________________________________29
13.6FIFO access ______________________________________________________________31
13.7Multiple SPI access ________________________________________________________31
14Microcontroller Interface and Pin Description __________________________________32
14.1Configuration interface _____________________________________________________32
14.2Receive mode ____________________________________________________________33
14.3RXFIFO overflow _________________________________________________________33
14.4Transmit mode____________________________________________________________34
14.5General control and status pins _______________________________________________35
15Demodulator, Symbol Synchroniser and Data Decision ___________________________35
16Frame Format _____________________________________________________________36
16.1Synchronisation header _____________________________________________________36
16.2Length field ______________________________________________________________37
16.3MAC protocol data unit_____________________________________________________37
16.4Frame check sequence______________________________________________________38
SWRS041B | Page 2 of 89 |
