CC2420RTCR Datasheet, PDF (2/94 Pages) Texas Instruments – 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

CC2420
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
SWRS041c
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