CC2500RGPR Datasheet, PDF (5/99 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transceiver

CC2500
16.3 AMPLITUDE MODULATION .................................................................................................................34
17 RECEIVED SIGNAL QUALIFIERS AND LINK QUALITY INFORMATION...................................................34
17.1 SYNC WORD QUALIFIER.....................................................................................................................34
17.2 PREAMBLE QUALITY THRESHOLD (PQT) ...........................................................................................34
17.3 RSSI...................................................................................................................................................34
17.4 CARRIER SENSE (CS)..........................................................................................................................35
17.5 CLEAR CHANNEL ASSESSMENT (CCA) ..............................................................................................37
17.6 LINK QUALITY INDICATOR (LQI) .......................................................................................................37
18 FORWARD ERROR CORRECTION WITH INTERLEAVING........................................................................37
18.1 FORWARD ERROR CORRECTION (FEC)...............................................................................................37
18.2 INTERLEAVING ...................................................................................................................................37
19 RADIO CONTROL ................................................................................................................................39
19.1 POWER-ON START-UP SEQUENCE ......................................................................................................39
19.2 CRYSTAL CONTROL............................................................................................................................40
19.3 VOLTAGE REGULATOR CONTROL.......................................................................................................40
19.4 ACTIVE MODES ..................................................................................................................................41
19.5 WAKE ON RADIO (WOR)...................................................................................................................41
19.6 TIMING ...............................................................................................................................................42
19.7 RX TERMINATION TIMER ...................................................................................................................43
20 DATA FIFO ........................................................................................................................................43
21 FREQUENCY PROGRAMMING ..............................................................................................................44
22 VCO...................................................................................................................................................45
22.1 VCO AND PLL SELF-CALIBRATION ...................................................................................................45
23 VOLTAGE REGULATORS .....................................................................................................................46
24 OUTPUT POWER PROGRAMMING ........................................................................................................46
25 SELECTIVITY ......................................................................................................................................48
26 CRYSTAL OSCILLATOR .......................................................................................................................50
26.1 REFERENCE SIGNAL ...........................................................................................................................50
27 EXTERNAL RF MATCH .......................................................................................................................50
28 PCB LAYOUT RECOMMENDATIONS....................................................................................................51
29 GENERAL PURPOSE / TEST OUTPUT CONTROL PINS ...........................................................................52
30 ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION ................................................................54
30.1 ASYNCHRONOUS OPERATION .............................................................................................................54
30.2 SYNCHRONOUS SERIAL OPERATION ...................................................................................................54
31 SYSTEM CONSIDERATIONS AND GUIDELINES .....................................................................................54
31.1 SRD REGULATIONS............................................................................................................................54
31.2 FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS.....................................................................55
31.3 WIDEBAND MODULATION NOT USING SPREAD SPECTRUM ................................................................55
31.4 DATA BURST TRANSMISSIONS............................................................................................................55
31.5 CONTINUOUS TRANSMISSIONS ...........................................................................................................55
31.6 CRYSTAL DRIFT COMPENSATION .......................................................................................................56
31.7 SPECTRUM EFFICIENT MODULATION..................................................................................................56
31.8 LOW COST SYSTEMS ..........................................................................................................................56
31.9 BATTERY OPERATED SYSTEMS ..........................................................................................................56
31.10 INCREASING OUTPUT POWER .........................................................................................................56
32 CONFIGURATION REGISTERS ..............................................................................................................57
32.1 CONFIGURATION REGISTER DETAILS – REGISTERS WITH PRESERVED VALUES IN SLEEP STATE ...... 61
32.2 CONFIGURATION REGISTER DETAILS – REGISTERS THAT LOSE PROGRAMMING IN SLEEP STATE..... 80
32.3 STATUS REGISTER DETAILS................................................................................................................81
33 PACKAGE DESCRIPTION (QFN 20) .....................................................................................................85
33.1 RECOMMENDED PCB LAYOUT FOR PACKAGE (QFN 20)....................................................................85
33.2 SOLDERING INFORMATION .................................................................................................................85
34 ORDERING INFORMATION...................................................................................................................86
35 REFERENCES.......................................................................................................................................86
36 GENERAL INFORMATION ....................................................................................................................88
36.1 DOCUMENT HISTORY .........................................................................................................................88
SWRS040C
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