CC2480_11 Datasheet, PDF (2/48 Pages) Texas Instruments – Z-Accel 2.4 GHz ZigBee Processor

CC2480
Table Of Contents
APPLICATIONS .............................................................................................................................................. 1
DESCRIPTION ................................................................................................................................................ 1
KEY FEATURES ............................................................................................................................................. 1
TABLE OF CONTENTS ................................................................................................................................. 2
1 ABBREVIATIONS................................................................................................................................ 4
2 REFERENCES ...................................................................................................................................... 5
3 ABSOLUTE MAXIMUM RATINGS .................................................................................................. 6
4 OPERATING CONDITIONS............................................................................................................... 6
5 ELECTRICAL SPECIFICATIONS .................................................................................................... 7
5.1 GENERAL CHARACTERISTICS ................................................................................................................ 8
5.2 RF RECEIVE SECTION ........................................................................................................................... 9
5.3 RF TRANSMIT SECTION......................................................................................................................... 9
5.4 32 MHZ CRYSTAL OSCILLATOR.......................................................................................................... 10
5.5 32.768 KHZ CRYSTAL OSCILLATOR .................................................................................................... 10
5.6 32 KHZ RC OSCILLATOR..................................................................................................................... 11
5.7 16 MHZ RC OSCILLATOR ................................................................................................................... 11
5.8 FREQUENCY SYNTHESIZER CHARACTERISTICS ................................................................................... 12
5.9 ANALOG TEMPERATURE SENSOR ........................................................................................................ 12
5.10 ADC ................................................................................................................................................... 12
5.11 CONTROL AC CHARACTERISTICS........................................................................................................ 14
5.12 SPI AC CHARACTERISTICS ................................................................................................................. 15
5.13 PORT OUTPUTS AC CHARACTERISTICS ............................................................................................... 15
5.14 DC CHARACTERISTICS ........................................................................................................................ 15
6 PIN AND I/O PORT CONFIGURATION ........................................................................................ 17
7 CIRCUIT DESCRIPTION ................................................................................................................. 19
8 APPLICATION CIRCUIT ................................................................................................................. 20
8.1 INPUT / OUTPUT MATCHING ................................................................................................................. 20
8.2 BIAS RESISTORS .................................................................................................................................. 20
8.3 CRYSTAL............................................................................................................................................. 20
8.4 VOLTAGE REGULATORS ...................................................................................................................... 20
8.5 POWER SUPPLY DECOUPLING AND FILTERING...................................................................................... 21
9 PERIPHERALS ................................................................................................................................... 23
9.1 RESET ................................................................................................................................................. 23
9.2 I/O PORTS............................................................................................................................................ 23
9.3 ADC ................................................................................................................................................... 25
9.4 RANDOM NUMBER GENERATOR ......................................................................................................... 27
9.5 USART............................................................................................................................................... 28
10 RADIO .................................................................................................................................................. 29
10.1 IEEE 802.15.4 MODULATION FORMAT ............................................................................................... 30
10.2 DEMODULATOR, SYMBOL SYNCHRONIZER AND DATA DECISION ....................................................... 31
10.3 FRAME FORMAT.................................................................................................................................. 31
10.4 SYNCHRONIZATION HEADER ............................................................................................................... 32
10.5 MAC PROTOCOL DATA UNIT ............................................................................................................... 32
10.6 FRAME CHECK SEQUENCE ................................................................................................................... 32
10.7 LINEAR IF AND AGC SETTINGS .......................................................................................................... 33
10.8 CLEAR CHANNEL ASSESSMENT........................................................................................................... 33
10.9 VCO AND PLL SELF-CALIBRATION.................................................................................................... 33
10.10 INPUT / OUTPUT MATCHING................................................................................................................ 33
10.11 SYSTEM CONSIDERATIONS AND GUIDELINES ...................................................................................... 34
10.12 PCB LAYOUT RECOMMENDATION ...................................................................................................... 35
10.13 ANTENNA CONSIDERATIONS ............................................................................................................... 35
CC2480 Data Sheet SWRS074A
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