CC1101
SWRS061F Page 5 of 96
14 DEMODULATOR, SYMBOL SYNCHRONIZER, AND DATA DECISION..................................35
14.1 FREQUENCY OFFSET COMPENSATION........................................................................................................35
14.2 BIT SYNCHRONIZATION.............................................................................................................................35
14.3 BYTE SYNCHRONIZATION..........................................................................................................................35
15 PACKET HANDLING HARDWARE SUPPORT..............................................................................36
15.1 DATA WHITENING .....................................................................................................................................36
15.2 PACKET FORMAT.......................................................................................................................................37
15.3 PACKET FILTERING IN RECEIVE MODE......................................................................................................39
15.4 PACKET HANDLING IN TRANSMIT MODE...................................................................................................39
15.5 PACKET HANDLING IN RECEIVE MODE .....................................................................................................40
15.6 PACKET HANDLING IN FIRMWARE.............................................................................................................40
16 MODULATION FORMATS.................................................................................................................41
16.1 FREQUENCY SHIFT KEYING.......................................................................................................................41
16.2 MINIMUM SHIFT KEYING...........................................................................................................................41
16.3 AMPLITUDE MODULATION ........................................................................................................................42
17 RECEIVED SIGNAL QUALIFIERS AND LINK QUALITY INFORMATION ............................42
17.1 SYNC WORD QUALIFIER............................................................................................................................42
17.2 PREAMBLE QUALITY THRESHOLD (PQT)..................................................................................................42
17.3 RSSI..........................................................................................................................................................43
17.4 CARRIER SENSE (CS).................................................................................................................................44
17.5 CLEAR CHANNEL ASSESSMENT (CCA) .....................................................................................................46
17.6 LINK QUALITY INDICATOR (LQI)..............................................................................................................46
18 FORWARD ERROR CORRECTION WITH INTERLEAVING.....................................................46
18.1 FORWARD ERROR CORRECTION (FEC)......................................................................................................46
18.2 INTERLEAVING ..........................................................................................................................................47
19 RADIO CONTROL................................................................................................................................48
19.1 POWER-ON START-UP SEQUENCE.............................................................................................................48
19.2 CRYSTAL CONTROL...................................................................................................................................49
19.3 VOLTAGE REGULATOR CONTROL..............................................................................................................50
19.4 ACTIVE MODES .........................................................................................................................................50
19.5 WAKE ON RADIO (WOR)..........................................................................................................................51
19.6 TIMING ......................................................................................................................................................52
19.7 RX TERMINATION TIMER ..........................................................................................................................53
20 DATA FIFO ............................................................................................................................................54
21 FREQUENCY PROGRAMMING........................................................................................................55
22 VCO .........................................................................................................................................................56
22.1 VCO AND PLL SELF-CALIBRATION ..........................................................................................................56
23 VOLTAGE REGULATORS .................................................................................................................56
24 OUTPUT POWER PROGRAMMING ................................................................................................56
25 SHAPING AND PA RAMPING............................................................................................................58
26 GENERAL PURPOSE / TEST OUTPUT CONTROL PINS.............................................................59
27 ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION..............................................61
27.1 ASYNCHRONOUS SERIAL OPERATION........................................................................................................61
27.2 SYNCHRONOUS SERIAL OPERATION ..........................................................................................................61
28 SYSTEM CONSIDERATIONS AND GUIDELINES.........................................................................62
28.1 SRD REGULATIONS...................................................................................................................................62
28.2 FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS............................................................................62
28.3 WIDEBAND MODULATION WHEN NOT USING SPREAD SPECTRUM.............................................................63
28.4 WIRELESS MBUS......................................................................................................................................63
28.5 DATA BURST TRANSMISSIONS...................................................................................................................63
28.6 CONTINUOUS TRANSMISSIONS ..................................................................................................................63
28.7 LOW COST SYSTEMS .................................................................................................................................64
28.8 BATTERY OPERATED SYSTEMS .................................................................................................................64
28.9 INCREASING OUTPUT POWER ....................................................................................................................64