CC2500-RTY1 datasheet(3/84 Pages) TI

3 / 84 page

CC2500

PRELIMINARY Data Sheet (Rev.1.2)

SWRS040A

Page 3 of 83

Table of Contents

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

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

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

FEATURES (CONTINUED FROM FRONT PAGE)................................................................................2

ABBREVIATIONS........................................................................................................................................2

TABLE OF CONTENTS ..............................................................................................................................3

ABSOLUTE MAXIMUM RATINGS ..............................................................................................6

OPERATING CONDITIONS ..........................................................................................................6

GENERAL CHARACTERISTICS..................................................................................................6

ELECTRICAL SPECIFICATIONS ................................................................................................7

4.1

CURRENT CONSUMPTION .....................................................................................................................7

4.2

RF RECEIVE SECTION...........................................................................................................................8

4.3

RF TRANSMIT SECTION ......................................................................................................................10

4.4

CRYSTAL OSCILLATOR .......................................................................................................................10

4.5

LOW POWER RC OSCILLATOR............................................................................................................11

4.6

FREQUENCY SYNTHESIZER CHARACTERISTICS...................................................................................11

4.7

ANALOG TEMPERATURE SENSOR .......................................................................................................12

4.8

DC CHARACTERISTICS .......................................................................................................................12

4.9

POWER-ON RESET ..............................................................................................................................12

PIN CONFIGURATION.................................................................................................................13

CIRCUIT DESCRIPTION .............................................................................................................15

APPLICATION CIRCUIT .............................................................................................................15

CONFIGURATION OVERVIEW .................................................................................................17

CONFIGURATION SOFTWARE.................................................................................................18

4-WIRE SERIAL CONFIGURATION AND DATA INTERFACE ...........................................19

10.1

CHIP STATUS BYTE ............................................................................................................................21

10.2

REGISTER ACCESS ..............................................................................................................................21

10.3

SPI READ ...........................................................................................................................................22

10.4

COMMAND STROBES ..........................................................................................................................22

10.5

FIFO ACCESS .....................................................................................................................................22

10.6

PATABLE ACCESS............................................................................................................................23

MICROCONTROLLER INTERFACE AND PIN CONFIGURATION ...................................23

11.1

CONFIGURATION INTERFACE ..............................................................................................................23

11.2

GENERAL CONTROL AND STATUS PINS ..............................................................................................23

11.3

OPTIONAL RADIO CONTROL FEATURE ...............................................................................................23

DATA RATE PROGRAMMING...................................................................................................24

RECEIVER CHANNEL FILTER BANDWIDTH .......................................................................24

DEMODULATOR, SYMBOL SYNCHRONIZER AND DATA DECISION............................25

14.1

FREQUENCY OFFSET COMPENSATION.................................................................................................25

14.2

BIT SYNCHRONIZATION......................................................................................................................25

14.3

BYTE SYNCHRONIZATION...................................................................................................................25

PACKET HANDLING HARDWARE SUPPORT .......................................................................26

15.1

DATA WHITENING ..............................................................................................................................26

15.2

PACKET FORMAT................................................................................................................................27

15.3

PACKET FILTERING IN RECEIVE MODE ...............................................................................................29

15.4

CRC CHECK .......................................................................................................................................29

15.5

PACKET HANDLING IN TRANSMIT MODE............................................................................................29

15.6

PACKET HANDLING IN RECEIVE MODE ..............................................................................................30

MODULATION FORMATS ..........................................................................................................30

16.1

FREQUENCY SHIFT KEYING ................................................................................................................30

16.2

MINIMUM SHIFT KEYING....................................................................................................................30

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