CC2420ZDK datasheet(3/92 Pages) TI

Part #	CC2420ZDK

Description	2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

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Manufacturer	TI [Texas Instruments]

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3 / 92 page

CC2420

SWRS041B

Page 3 of 89

17

RF Data Buffering __________________________________________________________39

17.1

Buffered transmit mode _____________________________________________________39

17.2

Buffered receive mode _____________________________________________________39

17.3

Unbuffered, serial mode ____________________________________________________40

18

Address Recognition ________________________________________________________41

19

Acknowledge Frames _______________________________________________________41

20

Radio control state machine __________________________________________________43

21

MAC Security Operations (Encryption and Authentication) _______________________45

21.1

Keys____________________________________________________________________45

21.2

Nonce / counter ___________________________________________________________45

21.3

Stand-alone encryption _____________________________________________________46

21.4

In-line security operations ___________________________________________________46

21.5

CTR mode encryption / decryption ____________________________________________47

21.6

CBC-MAC_______________________________________________________________47

21.7

CCM ___________________________________________________________________47

21.8

Timing __________________________________________________________________48

22

Linear IF and AGC Settings__________________________________________________48

23

RSSI / Energy Detection _____________________________________________________48

24

Link Quality Indication _____________________________________________________49

25

Clear Channel Assessment ___________________________________________________50

26

Frequency and Channel Programming _________________________________________50

27

VCO and PLL Self-Calibration _______________________________________________51

27.1

VCO____________________________________________________________________51

27.2

PLL self-calibration________________________________________________________51

28

Output Power Programming _________________________________________________51

29

Voltage Regulator __________________________________________________________51

30

Battery Monitor ____________________________________________________________52

31

Crystal Oscillator __________________________________________________________53

32

Input / Output Matching ____________________________________________________54

33

Transmitter Test Modes _____________________________________________________54

33.1

Unmodulated carrier _______________________________________________________54

33.2

Modulated spectrum _______________________________________________________55

34

System Considerations and Guidelines _________________________________________57

34.1

Frequency hopping and multi-channel systems___________________________________57

34.2

Data burst transmissions ____________________________________________________57

34.3

Crystal accuracy and drift ___________________________________________________57

34.4

Communication robustness __________________________________________________57

34.5

Communication security ____________________________________________________57

34.6

Low-cost systems _________________________________________________________58

34.7

Battery operated systems ____________________________________________________58

34.8

BER / PER measurements ___________________________________________________58

35

PCB Layout Recommendations _______________________________________________59

36

Antenna Considerations _____________________________________________________59

37

Configuration Registers _____________________________________________________61

38

Test Output Signals _________________________________________________________81

39

Package Description (QLP 48) ________________________________________________83

40

Recommended layout for package (QLP 48) ____________________________________84

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