CC2500_06 Datasheet, PDF (4/84 Pages) Texas Instruments – Single Chip Low Cost Low Power RF Transceiver

CC2500
16.3 AMPLITUDE MODULATION .................................................................................................................31
17 RECEIVED SIGNAL QUALIFIERS AND LINK QUALITY INFORMATION .....................31
17.1 SYNC WORD QUALIFIER.....................................................................................................................31
17.2 PREAMBLE QUALITY THRESHOLD (PQT) ...........................................................................................31
17.3 RSSI...................................................................................................................................................31
17.4 CARRIER SENSE (CS)..........................................................................................................................32
17.5 CLEAR CHANNEL ASSESSMENT (CCA) ..............................................................................................33
17.6 LINK QUALITY INDICATOR (LQI) .......................................................................................................34
18 FORWARD ERROR CORRECTION WITH INTERLEAVING ..............................................34
18.1 FORWARD ERROR CORRECTION (FEC)...............................................................................................34
18.2 INTERLEAVING ...................................................................................................................................34
19 RADIO CONTROL.........................................................................................................................35
19.1 POWER-ON START-UP SEQUENCE ......................................................................................................36
19.2 CRYSTAL CONTROL............................................................................................................................36
19.3 VOLTAGE REGULATOR CONTROL.......................................................................................................37
19.4 ACTIVE MODES ..................................................................................................................................37
19.5 WAKE ON RADIO (WOR)...................................................................................................................37
19.6 TIMING ...............................................................................................................................................38
19.7 RX TERMINATION TIMER ...................................................................................................................38
20 DATA FIFO .....................................................................................................................................39
21 FREQUENCY PROGRAMMING.................................................................................................40
22 VCO ..................................................................................................................................................41
22.1 VCO AND PLL SELF-CALIBRATION ...................................................................................................41
23 VOLTAGE REGULATORS ..........................................................................................................41
24 OUTPUT POWER PROGRAMMING .........................................................................................42
25 SELECTIVITY................................................................................................................................43
26 CRYSTAL OSCILLATOR.............................................................................................................45
26.1 REFERENCE SIGNAL ...........................................................................................................................46
27 EXTERNAL RF MATCH ..............................................................................................................46
28 GENERAL PURPOSE / TEST OUTPUT CONTROL PINS ......................................................46
29 ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION .......................................48
29.1 ASYNCHRONOUS OPERATION..............................................................................................................48
29.2 SYNCHRONOUS SERIAL OPERATION ....................................................................................................48
30 SYSTEM CONSIDERATIONS AND GUIDELINES ..................................................................48
30.1 SRD REGULATIONS............................................................................................................................48
30.2 FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS.....................................................................49
30.3 WIDEBAND MODULATION NOT USING SPREAD SPECTRUM ................................................................49
30.4 DATA BURST TRANSMISSIONS............................................................................................................49
30.5 CONTINUOUS TRANSMISSIONS ...........................................................................................................49
30.6 CRYSTAL DRIFT COMPENSATION .......................................................................................................49
30.7 SPECTRUM EFFICIENT MODULATION..................................................................................................50
30.8 LOW COST SYSTEMS ..........................................................................................................................50
30.9 BATTERY OPERATED SYSTEMS ..........................................................................................................50
30.10 INCREASING OUTPUT POWER .........................................................................................................50
31 CONFIGURATION REGISTERS.................................................................................................51
31.1 CONFIGURATION REGISTER DETAILS – REGISTERS WITH PRESERVED VALUES IN SLEEP STATE ..........55
31.2 CONFIGURATION REGISTER DETAILS – REGISTERS THAT LOSE PROGRAMMING IN SLEEP STATE ........74
31.3 STATUS REGISTER DETAILS.................................................................................................................75
32 PACKAGE DESCRIPTION (QLP 20)..........................................................................................78
32.1 RECOMMENDED PCB LAYOUT FOR PACKAGE (QLP 20) .....................................................................79
32.2 PACKAGE THERMAL PROPERTIES ........................................................................................................79
32.3 SOLDERING INFORMATION..................................................................................................................79
32.4 TRAY SPECIFICATION..........................................................................................................................79
32.5 CARRIER TAPE AND REEL SPECIFICATION ...........................................................................................80
PRELIMINARY Data Sheet (Rev.1.2) SWRS040A
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