CC2550

SWRS039B

Page 3 of 58

16.1

POWER-ON START-UP SEQUENCE ......................................................................................................25

16.2

CRYSTAL CONTROL............................................................................................................................26

16.3

VOLTAGE REGULATOR CONTROL.......................................................................................................26

16.4

TX MODE ...........................................................................................................................................27

16.5

TIMING ...............................................................................................................................................27

17

TX FIFO ...........................................................................................................................................27

18

FREQUENCY PROGRAMMING.................................................................................................28

19

VCO ..................................................................................................................................................29

19.1

VCO AND PLL SELF-CALIBRATION ...................................................................................................29

20

VOLTAGE REGULATORS ..........................................................................................................29

21

OUTPUT POWER PROGRAMMING .........................................................................................30

22

CRYSTAL OSCILLATOR.............................................................................................................32

22.1

REFERENCE SIGNAL ...........................................................................................................................32

23

EXTERNAL RF MATCH ..............................................................................................................32

24

PCB LAYOUT RECOMMENDATIONS......................................................................................33

25

GENERAL PURPOSE / TEST OUTPUT CONTROL PINS ......................................................33

26

ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION .......................................34

26.1

ASYNCHRONOUS OPERATION .............................................................................................................34

26.2

SYNCHRONOUS SERIAL OPERATION ...................................................................................................35

27

SYSTEM CONSIDERATIONS AND GUIDELINES ..................................................................35

27.1

SRD REGULATIONS............................................................................................................................35

27.2

FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS.....................................................................35

27.3

WIDEBAND MODULATION NOT USING SPREAD SPECTRUM ................................................................36

27.4

DATA BURST TRANSMISSIONS............................................................................................................36

27.5

CONTINUOUS TRANSMISSIONS ...........................................................................................................36

27.6

SPECTRUM EFFICIENT MODULATION..................................................................................................36

27.7

LOW COST SYSTEMS ..........................................................................................................................36

27.8

BATTERY OPERATED SYSTEMS ..........................................................................................................36

27.9

INCREASING OUTPUT POWER .............................................................................................................37

28

CONFIGURATION REGISTERS.................................................................................................37

28.1

CONFIGURATION REGISTER DETAILS .................................................................................................41

28.2

STATUS REGISTER DETAILS................................................................................................................49

29

PACKAGE DESCRIPTION (QLP 16) ..........................................................................................52

29.1

RECOMMENDED PCB LAYOUT FOR PACKAGE (QLP 16) ....................................................................53

29.2

PACKAGE THERMAL PROPERTIES .......................................................................................................53

29.3

SOLDERING INFORMATION .................................................................................................................53

29.4

TRAY SPECIFICATION .........................................................................................................................54

29.5

CARRIER TAPE AND REEL SPECIFICATION ..........................................................................................54

30

ORDERING INFORMATION.......................................................................................................54

31

REFERENCES ................................................................................................................................54

32

GENERAL INFORMATION.........................................................................................................55

32.1

DOCUMENT HISTORY .........................................................................................................................55

32.2

PRODUCT STATUS DEFINITIONS .........................................................................................................56

33

ADDRESS INFORMATION ..........................................................................................................57

34

TI WORLDWIDE TECHNICAL SUPPORT...............................................................................57