HT6P235A/HT6P245A
Learning RF Encoder without Crystal
Features
General Description
•ꢀ Operatingꢀvoltage:ꢀ2.5V~3.6V
Theꢀdevicesꢀareꢀaꢀseriesꢀofꢀencodersꢀwhichꢀincludeꢀ
aꢀfullyꢀintegratedꢀ433MHzꢀASKꢀtransmitterꢀforꢀ
remoteꢀcontrolꢀsystemꢀapplications.ꢀTheyꢀformꢀaꢀ
highlyꢀfunctionallyꢀintegratedꢀdeviceꢀseriesꢀwhichꢀ
canꢀbeꢀdescribedꢀasꢀtrueꢀ“switch-in,ꢀantenna-out”ꢀ
•ꢀ Averageꢀoperatingꢀcurrent
ꢀ
ꢀ
♦
20mAꢀ@ꢀVDD=3.0V,ꢀ12dBm
30mAꢀ@ꢀVDD=3.0V,ꢀ16dBm
♦
monolithicꢀdevices.ꢀTheꢀdevicesꢀencodeꢀ24ꢀorꢀ28ꢀ
bitsꢀofꢀaddressꢀandꢀdataꢀinformationꢀandꢀthenꢀseriallyꢀ
transmitsꢀitꢀviaꢀtheirꢀDOUTꢀpinꢀuponꢀreceiptꢀofꢀaꢀ
transmissionꢀenableꢀsignalꢀwhichꢀisꢀprovidedꢀbyꢀdataꢀ
pins,ꢀD0~D3ꢀorꢀB0~B1.ꢀTheꢀdevicesꢀalsoꢀencodeꢀtheꢀ
addressꢀandꢀdataꢀinformationꢀintoꢀaꢀcodedꢀwaveformꢀ
whichꢀisꢀtransmittedꢀoutꢀonꢀtheirꢀPAOUTꢀpinꢀforꢀRFꢀ
modulation.ꢀTwoꢀareasꢀstandꢀoutꢀforꢀspecialꢀattention,ꢀ
thoseꢀofꢀpowerꢀdeliveryꢀandꢀoperatingꢀtemperature.ꢀ
Inꢀtermsꢀofꢀpower,ꢀtheꢀHT6P2x5Aꢀisꢀcapableꢀofꢀ
deliveringꢀ+16dBmꢀintoꢀaꢀ50Ωꢀload,ꢀaꢀpowerꢀlevelꢀ
whichꢀenablesꢀaꢀsmallꢀformꢀfactorꢀtransmitter,ꢀsuchꢀasꢀ
aꢀkeyꢀfobꢀtransmitter,ꢀtoꢀoperateꢀoverꢀaꢀlongꢀdistance.ꢀ
Inꢀtermsꢀofꢀtemperature,ꢀtheꢀHT6P2x5Aꢀcanꢀoperateꢀ
fromꢀ-10˚Cꢀtoꢀ50˚Cꢀwithꢀveryꢀlittleꢀfrequencyꢀdrift.ꢀ
Additionallyꢀtheꢀdevicesꢀareꢀextremelyꢀeasyꢀtoꢀuseꢀ
andꢀhavingꢀaꢀfullyꢀintegratedꢀoscillatorꢀrequireꢀonlyꢀ
aꢀminimumꢀofꢀexternalꢀcomponentsꢀtoꢀimplementꢀaꢀ
completeꢀandꢀversatileꢀtransmitter.ꢀForꢀlongerꢀdistanceꢀ
remoteꢀcontrol,ꢀtheꢀdevicesꢀoperateꢀtogetherꢀwithꢀanꢀ
ASK/OOKꢀ–ꢀAmplitudeꢀShiftꢀKeying/On-OffꢀKeyedꢀ
•ꢀ Standbyꢀcurrent:ꢀ1.0μAꢀ(Max.)ꢀ@ꢀVDD=3V
•ꢀ Upꢀtoꢀ4ꢀdataꢀpins
•ꢀ 2ꢀcompoundꢀdataꢀtriggerꢀpins
•ꢀ Upꢀtoꢀ224ꢀaddressꢀcodesꢀ
•ꢀ Integratedꢀ13.56MHzꢀRCꢀoscillator
•ꢀ 8ꢀbitꢀtimeꢀusingꢀ2ꢀpinꢀselection
•ꢀ IntegratedꢀUHFꢀtransmitter
•ꢀ Frequency:ꢀ433MHzꢀ
•ꢀ SupportsꢀASK/OOKꢀmodulation
•ꢀ 3ꢀoutputꢀpowerꢀlevels:ꢀ12dBm/14dBm/16dBmꢀ
usingꢀaꢀsingleꢀpinꢀselection
•ꢀ Minimalꢀexternalꢀcomponents
•ꢀ Highꢀnoiseꢀimmunity
•ꢀ 16-PinꢀNSOPꢀpackage
Applications
•ꢀ Burglarꢀalarmꢀsystems
–ꢀUHFꢀwide-bandꢀsuper-regenerativeꢀreceiver.
•ꢀ Smokeꢀandꢀfireꢀalarmꢀsystems
•ꢀ Personalꢀalarmꢀsystems
•ꢀ Car/garageꢀdoorꢀcontrollers
•ꢀ Home/office/carꢀsecurityꢀsystems
•ꢀ Otherꢀremoteꢀcontrolꢀsystems
Selection Table
Compound
Data No.
Frequency
Band
Part No.
VDD
Addr. No. Data No.
Trig.
RF Type
Package
HT6P235A 2.5V~3.6V
HT6P245A 2.5V~3.6V
22
24
2
4
1
2
Data Low 433MHz
Data Low 433MHz
ASK TX
ASK TX
16 NSOP
16 NSOP
Rev. 1.00
1
June 07, 2013