CC2420-RTB1 datasheet(2/92 Pages) TI

Part #	CC2420-RTB1

Description	2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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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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