CC2500 Datasheet, PDF (4/76 Pages) Texas Instruments – Single Chip Low Cost Low Power RF Transceiver

CC2500
17 RECEIVED SIGNAL QUALIFIERS AND LINK QUALITY INFORMATION .....................30
17.1 SYNC WORD QUALIFIER.....................................................................................................................30
17.2 PREAMBLE QUALITY THRESHOLD (PQT) ...........................................................................................30
17.3 RSSI...................................................................................................................................................30
17.4 CARRIER SENSE (CS)..........................................................................................................................31
17.5 CLEAR CHANNEL ASSESSMENT (CCA) ..............................................................................................32
17.6 LINK QUALITY INDICATOR (LQI) .......................................................................................................32
18 FORWARD ERROR CORRECTION WITH INTERLEAVING ..............................................33
18.1 FORWARD ERROR CORRECTION (FEC)...............................................................................................33
18.2 INTERLEAVING ...................................................................................................................................33
19 RADIO CONTROL.........................................................................................................................34
19.1 POWER-ON START-UP SEQUENCE ......................................................................................................35
19.2 CRYSTAL CONTROL............................................................................................................................35
19.3 VOLTAGE REGULATOR CONTROL.......................................................................................................35
19.4 ACTIVE MODES ..................................................................................................................................35
19.5 WAKE ON RADIO (WOR)...................................................................................................................36
19.6 TIMING ...............................................................................................................................................37
19.7 RX TERMINATION TIMER ...................................................................................................................37
20 DATA FIFO .....................................................................................................................................38
21 FREQUENCY PROGRAMMING.................................................................................................39
22 VCO ..................................................................................................................................................40
22.1 VCO AND PLL SELF-CALIBRATION ...................................................................................................40
23 VOLTAGE REGULATORS ..........................................................................................................40
24 OUTPUT POWER PROGRAMMING .........................................................................................40
25 SELECTIVITY GRAPHS ..............................................................................................................42
26 CRYSTAL OSCILLATOR.............................................................................................................44
26.1 REFERENCE SIGNAL ...........................................................................................................................44
27 EXTERNAL RF MATCH ..............................................................................................................45
28 GENERAL PURPOSE / TEST OUTPUT CONTROL PINS ......................................................45
29 ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION .......................................47
29.1 ASYNCHRONOUS OPERATION..............................................................................................................47
29.2 SYNCHRONOUS SERIAL OPERATION ....................................................................................................47
30 SYSTEM CONSIDERATIONS AND GUIDELINES ..................................................................47
30.1 SRD REGULATIONS............................................................................................................................47
30.2 FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS.....................................................................47
30.3 DATA BURST TRANSMISSIONS............................................................................................................48
30.4 CONTINUOUS TRANSMISSIONS ...........................................................................................................48
30.5 CRYSTAL DRIFT COMPENSATION .......................................................................................................48
30.6 SPECTRUM EFFICIENT MODULATION..................................................................................................48
30.7 LOW COST SYSTEMS ..........................................................................................................................49
30.8 BATTERY OPERATED SYSTEMS ..........................................................................................................49
30.9 INCREASING OUTPUT POWER .............................................................................................................49
31 CONFIGURATION REGISTERS.................................................................................................49
31.1 CONFIGURATION REGISTER DETAILS – REGISTERS WITH PRESERVED VALUES IN SLEEP STATE ..........54
31.2 CONFIGURATION REGISTER DETAILS – REGISTERS THAT LOSE PROGRAMMING IN SLEEP STATE ........69
31.3 STATUS REGISTER DETAILS.................................................................................................................70
32 PACKAGE DESCRIPTION (QLP 20)..........................................................................................73
32.1 RECOMMENDED PCB LAYOUT FOR PACKAGE (QLP 20) .....................................................................74
32.2 PACKAGE THERMAL PROPERTIES ........................................................................................................74
32.3 SOLDERING INFORMATION..................................................................................................................74
32.4 TRAY SPECIFICATION..........................................................................................................................74
32.5 CARRIER TAPE AND REEL SPECIFICATION ...........................................................................................75
33 ORDERING INFORMATION.......................................................................................................75
34 GENERAL INFORMATION.........................................................................................................75
Preliminary Data Sheet (rev.1.1.) SWRS040
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