【文件属性】：
文件名称：cc2420无线传感芯片说明手册
文件大小：1.31MB
文件格式：PDF
更新时间：2013-11-14 09:04:05
cc2420 zigbee 无线 datasheet 说明书
TI公司的无线传感芯片cc2420使用手册
目录参考
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
CC2420
CC2420 Datasheet (rev 1.3), 2005-10-03 Page 3 of 90
17 RF Data Buffering__________________________________________________________39
17.1 Buffered transmit mode_____________________________________________________39
17.2 Buffered receive mode _____________________________________________________40
17.3 Un-buffered, serial mode____________________________________________________40
18 Address Recognition ________________________________________________________41
19 Acknowledge Frames _______________________________________________________42
20 Radio control state machine __________________________________________________44
21 MAC Security Operations (Encryption and Authentication) _______________________46
21.1 Keys____________________________________________________________________46
21.2 Nonce / counter ___________________________________________________________46
21.3 Stand-alone encryption _____________________________________________________47
21.4 In-line security operations ___________________________________________________47
21.5 CTR mode encryption / decryption ____________________________________________48
21.6 CBC-MAC_______________________________________________________________48
21.7 CCM ___________________________________________________________________48
21.8 Timing __________________________________________________________________49
22 Linear IF and AGC Settings__________________________________________________49
23 RSSI / Energy Detection _____________________________________________________49
24 Link Quality Indication _____________________________________________________50
25 Clear Channel Assessment ___________________________________________________51
26 Frequency and Channel Programming _________________________________________51
27 VCO and PLL Self-Calibration _______________________________________________52
27.1 VCO____________________________________________________________________52
27.2 PLL self-calibration________________________________________________________52
28 Output Power Programming _________________________________________________52
29 Voltage Regulator __________________________________________________________52
30 Battery Monitor____________________________________________________________53
31 Crystal Oscillator __________________________________________________________54
32 Input / Output Matching ____________________________________________________55
33 Transmitter Test Modes _____________________________________________________55
33.1 Unmodulated carrier _______________________________________________________55
33.2 Modulated spectrum _______________________________________________________56
34 System Considerations and Guidelines _________________________________________58
34.1 Frequency hopping and multi-channel systems___________________________________58
34.2 Data burst transmissions ____________________________________________________58
34.3 Crystal accuracy and drift ___________________________________________________58
34.4 Communication robustness __________________________________________________58
34.5 Communication security ____________________________________________________58
34.6 Low cost systems__________________________________________________________59
34.7 Battery operated systems ____________________________________________________59
34.8 BER / PER measurements ___________________________________________________59
35 PCB Layout Recommendations _______________________________________________60
36 Antenna Considerations _____________________________________________________60
37 Configuration Registers _____________________________________________________62
38 Test Output Signals _________________________________________________________82
39 Package Description (QLP 48) ________________________________________________84
40 Recommended layout for package (QLP 48) ____________________________________85
CC2420
CC2420 Datasheet (rev 1.3), 2005-10-03 Page 4 of 90
40.1 Package thermal properties __________________________________________________85
40.2 Soldering information ______________________________________________________85
40.3 Plastic tube specification ____________________________________________________86
40.4 Carrier tape and reel specification _____________________________________________86
41 Ordering Information _______________________________________________________86
42 General Information ________________________________________________________87
42.1 Document History _________________________________________________________87
42.2 Product Status Definitions___________________________________________________89
42.3 Disclaimer _______________________________________________________________89
42.4 Trademarks ______________________________________________________________89
42.5 Life Support Policy ________________________________________________________89
43 Address Information ________________________________________________________90