CC2550

SWRS039B

Page 2 of 58

Table of Contents

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

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

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

RF PERFORMANCE ...................................................................................................................................1

ANALOG FEATURES .................................................................................................................................1

DIGITAL FEATURES..................................................................................................................................1

LOW-POWER FEATURES.........................................................................................................................1

GENERAL .....................................................................................................................................................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 .........................................................................................................................7

4.4

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

4.5

ANALOG TEMPERATURE SENSOR .........................................................................................................8

4.6

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

4.7

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

5

PIN CONFIGURATION...................................................................................................................9

6

CIRCUIT DESCRIPTION .............................................................................................................10

7

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

8

CONFIGURATION OVERVIEW .................................................................................................13

9

CONFIGURATION SOFTWARE.................................................................................................14

10

4-WIRE SERIAL CONFIGURATION AND DATA INTERFACE ...........................................14

10.1

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

10.2

REGISTERS ACCESS ............................................................................................................................16

10.3

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

10.4

COMMAND STROBES ..........................................................................................................................17

10.5

FIFO ACCESS .....................................................................................................................................17

10.6

PATABLE

ACCESS .............................................................................................................................17

11

MICROCONTROLLER INTERFACE AND PIN CONFIGURATION ...................................18

11.1

CONFIGURATION INTERFACE ..............................................................................................................18

11.2

GENERAL CONTROL AND STATUS PINS ..............................................................................................18

12

DATA RATE PROGRAMMING...................................................................................................19

13

PACKET HANDLING HARDWARE SUPPORT .......................................................................19

13.1

DATA WHITENING...............................................................................................................................19

13.2

PACKET FORMAT................................................................................................................................20

13.3

PACKET HANDLING IN TRANSMIT MODE............................................................................................22

13.4

PACKET HANDLING IN FIRMWARE......................................................................................................22

14

MODULATION FORMATS ..........................................................................................................22

14.1

FREQUENCY SHIFT KEYING ................................................................................................................23

14.2

MINIMUM SHIFT KEYING....................................................................................................................23

14.3

AMPLITUDE MODULATION .................................................................................................................23

15

FORWARD ERROR CORRECTION WITH INTERLEAVING ..............................................23

15.1

FORWARD ERROR CORRECTION (FEC)...............................................................................................23

15.2

INTERLEAVING ...................................................................................................................................24

16

RADIO CONTROL.........................................................................................................................25