CC2550

PRELIMINARY Data Sheet (Rev.1.2)

SWRS039A

Page 2 of 54

Table of Contents

APPLICATIONS ...........................................................................................................................................1

PRODUCT DESCRIPTION.........................................................................................................................1

KEY FEATURES ..........................................................................................................................................1

TABLE OF CONTENTS ..............................................................................................................................2

ABBREVIATIONS........................................................................................................................................4

1

ABSOLUTE MAXIMUM RATINGS ..............................................................................................4

2

OPERATING CONDITIONS ..........................................................................................................5

3

GENERAL CHARACTERISTICS..................................................................................................5

4

ELECTRICAL SPECIFICATIONS ................................................................................................5

4.1

CURRENT CONSUMPTION .....................................................................................................................5

4.2

RF TRANSMIT SECTION ........................................................................................................................6

4.3

CRYSTAL OSCILLATOR .........................................................................................................................6

4.4

FREQUENCY SYNTHESIZER CHARACTERISTICS.....................................................................................7

4.5

ANALOG TEMPERATURE SENSOR .........................................................................................................7

4.6

DC CHARACTERISTICS .........................................................................................................................8

4.7

POWER ON RESET.................................................................................................................................8

5

PIN CONFIGURATION...................................................................................................................8

6

CIRCUIT DESCRIPTION ...............................................................................................................9

7

APPLICATION CIRCUIT .............................................................................................................10

8

CONFIGURATION OVERVIEW .................................................................................................12

9

CONFIGURATION SOFTWARE.................................................................................................13

10

4-WIRE SERIAL CONFIGURATION AND DATA INTERFACE ...........................................13

10.1

CHIP STATUS BYTE ............................................................................................................................15

10.2

REGISTERS ACCESS ............................................................................................................................15

10.3

SPI READ ...........................................................................................................................................16

10.4

COMMAND STROBES ..........................................................................................................................16

10.5

FIFO ACCESS .....................................................................................................................................16

10.6

PATABLE ACCESS............................................................................................................................16

11

MICROCONTROLLER INTERFACE AND PIN CONFIGURATION ...................................17

11.1

CONFIGURATION INTERFACE ..............................................................................................................17

11.2

GENERAL CONTROL AND STATUS PINS ..............................................................................................17

12

DATA RATE PROGRAMMING...................................................................................................18

13

PACKET HANDLING HARDWARE SUPPORT .......................................................................18

13.1

DATA WHITENING...............................................................................................................................18

13.2

PACKET FORMAT ................................................................................................................................19

13.3

PACKET HANDLING IN TRANSMIT MODE............................................................................................21

14

MODULATION FORMATS ..........................................................................................................21

14.1

FREQUENCY SHIFT KEYING ................................................................................................................21

14.2

MINIMUM SHIFT KEYING....................................................................................................................21

14.3

AMPLITUDE MODULATION .................................................................................................................21

15

FORWARD ERROR CORRECTION WITH INTERLEAVING ..............................................22

15.1

FORWARD ERROR CORRECTION (FEC)...............................................................................................22

15.2

INTERLEAVING ...................................................................................................................................22

16

RADIO CONTROL.........................................................................................................................23

16.1

POWER-ON START-UP SEQUENCE ......................................................................................................23

16.2

CRYSTAL CONTROL............................................................................................................................24

16.3

VOLTAGE REGULATOR CONTROL.......................................................................................................24

16.4

ACTIVE MODE ....................................................................................................................................25

16.5

TIMING ...............................................................................................................................................25

17

DATA FIFO .....................................................................................................................................25

18

FREQUENCY PROGRAMMING.................................................................................................26