Texas Instruments 3138 155 232931 manual Transceiver

Page 21

CC2420

R451

3.3V Power

supply

 

 

 

 

 

 

 

C391

 

C381

 

 

 

 

 

 

C42 XTAL

Antenna

(50 Ohm)

C62

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

 

 

 

47

 

 

 

46

 

 

 

45

 

 

 

44

 

 

43

 

42

 

 

41

 

40

 

39

 

 

 

 

AVDD CHP

 

 

 

ATEST1

 

 

 

ATEST2

 

 

 

R BIAS

 

 

 

AVDD IF1

 

 

IN

 

VREG OUT

 

 

EN

 

NC

 

Q1

 

 

 

 

 

 

 

 

 

 

 

 

 

VREG

 

VREG

 

 

XOSC16

 

1

VCO_GUARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 AVDD_VCO

 

 

 

3

AVDD_PRE

 

 

 

 

 

 

 

 

C61

 

 

4

AVDD_RF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CC2420

 

 

 

L62

 

5

GND

 

 

 

 

 

 

C71

L61

6

RF_P

 

 

 

 

 

RF

 

 

 

 

 

 

7

TXRX_SWITCH

 

 

Transceiver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

RF_N

 

 

 

 

 

 

 

 

 

L81

 

 

9

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C81

 

10

AVDD_SW

 

 

 

 

 

 

 

 

 

 

 

 

11 NC

AVDDRF2

AVDDIF2

 

AVDDADC

DVDDADC

DGNDGUARD

DGUARD

RESETn

DGND

 

 

 

12

NC

NC

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

13

14

15

16

17

18

19

20

21

22

XOSC16_Q2 38

DSUB_PADS 23

XOSC1637 _AVDD NC 36 DVDD_RAM 35

SO 34

SI 33

SCLK 32

CSn 31

FIFO 30

FIFOP 29

CCA 28

SFD 27

DVDD1.8 26 DSUBDVDD3.3 25

_CORE 24

Digital Interface

Figure 4. Typical application circuit with discrete balun for single-ended operation

SWRS041B

Page 21 of 89

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Key Features ApplicationsProduct Description Table of contents RF Data Buffering Ordering Information General Information ITU-T AbbreviationsReferences Features Operating Conditions Absolute Maximum RatingsParameter Min Max Units Condition Parameter Min Typ Max Units ConditionOverall Electrical SpecificationsTransmit Section Parameter Min Typ Max Unit Condition / NoteReceive Section Rssi / Carrier Sense If SectionFrequency Synthesizer Section VDD Digital Inputs/OutputsBattery Monitor Power SupplyVoltage Regulator CC2420 Pin Pin Name Pin type Pin Description Pin AssignmentAvddadc Circuit Description CC2420 simplified block diagramCC2420 Application Circuit Power supply decoupling and filteringInput / output matching Bias resistorDescription Overview of external componentsTransceiver Transceiver Bill of materials for the application circuits Ieee 802.15.4 Modulation Format Symbol Chip sequence C0, C1, C2, … , C31Phase Configuration OverviewSmartRF Studio user interface Evaluation Software13 4-wire Serial Configuration and Data Interface Pin configurationRegister access Parameter Symbol Min Max Units Conditions SPI timing specification Status byteRAM access Configuration registers write and read operations via SPI CC2420 RAM Memory Space Fifo access Multiple SPI accessAddress Byte Ordering Name Description Microcontroller Interface and Pin Description Configuration interfaceRxfifo overflow Receive modePin activity examples during receive Demodulator, Symbol Synchroniser and Data Decision Frame Format Demodulator Simplified Block DiagramMAC protocol data unit Transmitted Synchronisation Header Length fieldFormat of the Frame Control Field FCF Frame check sequence Buffered transmit mode Buffered receive modeRF Data Buffering Fifop Unbuffered, serial modeAcknowledge Frames Address RecognitionAcknowledge frame format Radio control state machine Radio control states Keys MAC Security Operations Encryption and AuthenticationNonce / counter Ieee 802.15.4 NonceIn-line security operations CC2420 Security Flag Byte Stand-alone encryptionCTR mode encryption / decryption CBC-MAC21.7 CCM Mode LMIC Time Linear if and AGC SettingsRssi / Energy Detection TimingLink Quality Indication ValueRF Level dBm Frequency and Channel Programming Clear Channel AssessmentVCO and PLL Self-Calibration Output Power ProgrammingVoltage Regulator 27.1 VCOVoltage regulator, simplified schematic Battery MonitorCrystal Oscillator Transmitter Test Modes Input / Output MatchingCrystal oscillator component values Unmodulated carrierCC2420 Modulated spectrum plot System Considerations and Guidelines Battery operated systems Low-cost systemsBER / PER measurements Antenna Considerations PCB Layout RecommendationsCC2420 Address Register Register type Description Configuration RegistersSaes Configuration registers overviewBit Field Name Reset Main 0x10 Main Control RegisterXOSC16MBYPASS MDMCTRL0 0x11 Modem Control Register Reservedframemode Pancoordinator AdrdecodeCCAHYST20 CCAMODE10 Autocrc Autoack Preamblelength Rssi 0x13 Rssi and CCA Status and Control Register MDMCTRL1 0x12- Modem Control RegisterCORRTHR40 Demodavgmode Modulationmode RSSIVAL70Txctrl 0x15 Transmit Control Register Syncword 0x14 Sync WordRXMIXBUFCUR10 RXCTRL0 0x16 Receive control registerRXCTRL1 0x17 Receive control register Caldone Calrunning Locklength Lockstatus Fsctrl 0x18 Frequency Synthesizer Control and StatusSECMODE10 SECCTRL0 0x19 Security Control RegisterSECCTRL1 0x1A Security Control Register Battmon 0x1B Battery Monitor Control registerSectxl Secrxl Battmonok Battmonen BattmonvoltageIOCFG1 0x1D I/O Configuration Register IOCFG0 0x1C I/O Configuration RegisterManfidl 0x1E Manufacturer ID, Lower 16 Bit HSSDSRC20 SFDMUX40 CCAMUX40Fsmtc 0x20 Finite state machine time constants Manfidh 0x1F Manufacturer ID, Upper 16 BitIsused = is * Isandmask + Isormask Manand 0x21 Manual signal and override register1Agcctrl 0x23 AGC Control Manor 0x22 Manual signal or override registerVgagainoe LnamixgainmodeoAGCTST0 0x24 AGC Test Register AGCTST1 0x25 AGC Test RegisterAGCTST2 0x26 AGC Test Register FSTST0 0x27 Frequency Synthesizer Test Register FSTST1 0x28 Frequency Synthesizer Test RegisterFSTST2 0x29 Frequency Synthesizer Test Register FSTST3 0x2A Frequency Synthesizer Test Register Rxbpftst 0x2B Receiver Bandpass Filters Test RegisterFsmstate 0x2C Finite state machine information Adcclockdisable Adctst 0x2D ADC Test RegisterDactst 0x2E DAC Test Register Toptst 0x2F Top Level Test Register Oscillator must be running for accessing the RxfifoTxfifo 0x3E Transmit Fifo Byte register Rxfifo 0x3F Receive Fifo Byte registerTest Output Signals CCA test signal select tableSignal output on CCA pin Description Signal output on SFD pin Description SFD test signal select tableQuad Leadless Package QLP Package Description QLPPackage thermal properties Recommended layout for package QLPSoldering information Thermal resistance40.4 Carrier tape and reel specification 40.3 Plastic tube specificationTube Specification Tape and Reel SpecificationGeneral Information 42.1 Document HistoryRevision Date Description/Changes Product Status Definitions Data Sheet Identification Product Status DefinitionAddress Information TI Worldwide Technical Support InternetProduct Information Centers 2007, Texas Instruments. All rights reserved Important Notice
Top Page Image Contents