SA828PRO

SA828PRO G-NICE | Alldatasheet

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www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -1- SA828Pro Full-featured Walkie Talkie module  1.6W@4V,2W@5V  Frequencysupport:137-174MHz,400-470MHz  Independenttransmitandreceivefrequencies;supportsvoiceand datatransmission  38CTCSSlevelsand166CDCSSlevels Product Specification

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -3- 1. Description SA828Pro is a highly cost-effective, full-featured walkie talkie module .It supports both voice and data communication modes. It integrates a high-speed microcontroller, a high-performance RF transceiver chip, and an RF power amplifier.All parameters(CTCSS, CDCSS, SQ, Predefined channels etc.) can be easily modified by PC software, Users only need to add external power supply, speaker, and audio taper, then it becomes a miniature walkie talkie with 16 adjustable channels. Simplified interface and Ultra small size make this module widely used in various applications and conveniently embedded into various handheld. SA828Pro is manufactured and tested using a strictly lead-freeprocessandcomplieswithRoHSandREACHstandards. 2. Features  UHFFrequency:400~480MHz VHFFrequency :134~174MHz (2frequencybandsareoptional)  TxandRxfrequencycanbesetalone  Bandwidth12.5/25KHz  High/lowpowerisoptional （500mW/1.5W@4.0V）  Distanceupto4-5kminopenarea  HighSensitivity：-124dBm  High-integrated,SmallSize  38CTCSS(canbesetviaPCsoftwareandserialport)  166CDCSS (canbesetviaPCsoftwareandserialport)  8levelsquelch  Widerangeofworkingvoltage3.3-5.5V  Externalpotentiometertoadjustvolume  1ppmKDSTCXOcrystal,Stableperformance 3. Application  Smallwalkietalkie  Invisibleintercomsystem  audiosurveillancesystem  OutdoorSportproducts  buildingcommunitysecuritysystem 4. Internal block diagram

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -4- 5. Specification Parameter Test condition Min Typ. Max Unit Powersupply 3.3 4.2 5.5 V WorkingTemperaturerange -30 25 70 ℃ Current Consumption Sleepcurrent ≤45 uA RXcurrent <80 mA TXcurrent（Highpower） @4.0V,32dBm 900 1000 mA TXcurrent（Lowpower） @4.0V,27dBm 500 600 mA Transmitting RF Parameters Frequencyrange UHF 400 450 480 MHz VHF 134 150 174 MHz Outpower（highpower） @VCC=4.0V 31 32 33 dBm Outpower（lowpower） 26 26.5 27.5 dBm modulationsensitivity @1.5KHz/2.5KHz Frequencydeviation 10 mV Audiodistortion @1.5KHz/2.5KHz Frequencydeviation 2 5 % Signaltonoiseratio @1.5KHz/2.5KHz Frequencydeviation 38 40 45 dB Adjacent-channelpower @12.5Koffset -60dBc dBm CTCSSmodulatedfrequency deviation 0.35 0.5 0.75 KHz RX frequency Parameter RXsensitivity 13dBmoutputvoice signal-to-noiseratio (SNR) -124 dBm RXSNR @1.5KHz Frequencydeviation 45 50 dB Audiooutputpower 2 W Audiooutputimpedance 8 OHm 6.Power vs. Voltage Reference Table (@424.75 MHz) Inputvoltage(V) Outputpower(dBm) Operatingcurrent(mA) 3.0 27.8 629 3.3 29.6 759 3.6 31.0 889 4.0 32.0 964 4.4 32.7 1020 5.0 33.7 1110

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -5- 7. Typical application schematic

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -6- 8. Parameter configuration The module integrates a standard Type-C interface , user can configure and read the related parameters by sending serial instructions. Module has built-in memory, the related configured parameters can be saved even power off. Meantime, we offer PC software to customers by free charge, users can connect module with PC software via USB bridge board, in this way, user can configuretherelatedparametersonPCsoftware. PCsoftwarecanreadthemodule’sparameterafterconnectingsuccessfully,Asshownbelow:  TXchannel：transmittingfrequency ，total 16groups，Factory Default as showninthe above interface  RX channel：receiving frequency，total 16 groups，Factory Default as shown in the above interface.  TXCTCS：transmittingCTCSS，38levelforoption，FactoryDefaultis0.  TXCDCS：transmittingCDCSS，166levelforoption，FactoryDefaultis0.  RXCTCS：receivingCTCSS，38levelforoption，FactoryDefaultis0.  RXCDCS：receivingCDCSS，166levelforoption，FactoryDefaultis0..

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -7-  SQ：receivingSquelchlevel，8levelforoption，Defaultis1. ★ Note:ForCTCSSandCDCSS,usercanchooseoneofthemtouse. 9. Communication protocol CommandsFormat： Aftermodulerunning,thestandardsettingofserialportasbelow:： BaudRate：9600bps DateBit：8 Stop：1 Parity:None Instructionreturnformat： Returntrue：OK\\r\\n，Returnfalse：ERROR\\r\\n FrameformatDefinition ： ASCIIisusedincommunicationprotocol。 ★ Note: CDCSS can be checked inAppendix1  Read Module Name and Version Number Format：AAFA A ReturnValue：SAxxx_VERx.x\\r\\n Example：AAFA A （Hex：0x410x410x460x410x41） Return：SA828Pro_VER1.0\\r\\n （Hex：0x53 0x41 0x38 0x32 0x38 0x50 0x72 0x6f 0x5f 0x56 0x45 0x52 0x31 0x2E 0x30 0x0D 0x0A）  Read parameter Format：AAFA 1 SQ ParametersdescriptionintheSetupGroupInstructions Example：AAFA 1 （Hex 0x410x410x460x410x31 ） Return：AA 5250,455.5250,011,125,8 （Hex 41413435302e 313235302c3435302e 313235302c3435312e 313235302c34

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -8- 35312e313235302c3435322e313235302c3435322e313235302c3435332e313235 302c3435332e313235302c3435342e313235302c3435342e313235302c3435352e 313235302c3435352e313235302c3435362e313235302c3435362e313235302c34 35372e313235302c3435372e313235302c3435382e313235302c3435382e313235 302c3435392e313235302c3435392e313235302c3435352e303235302c3435352e 303235302c3435352e313235302c3435352e313235302c3435352e323235302c34 35352e323235302c3435352e333235302c3435352e333235302c3435352e343235 302c 3435 352e3432 35302c34 35352e 353235302c 343535 2e353235 302cs30 3131 2c3132352c380d0a）  Set to default parameter Format：AAFA 2 ReturnValue：“OK\\r\\n”OR"ERROR\\r\\n" Example：AAFA 2 （Hex4141464132 ） Return：OK\\r\\n（Hex4f4b0d0a）  Setup group instructions： Description：thiscommandisusedtotellmoduletheinformationofsettingparameters SQ ParameterDescription: TX_SUBAUDIO：TXCTCSS/CDCSS RX_SUBAUDIO：RXCTCSS/CDCSS SQ：Squelchlevel(0～8)(0：monitormode,0cannotbeusedinscanmode） （Note:TXandRXcanusedifferentCTCSSvalue,000:nocoding 001-038:CTCSS，039--204： CDCSS，CDCSS displays code on the configuration software, the data and code as shown on Appendix1） Example：AAFA3 5250,455.5250,011,125,8 （Hex 41414641333435302e313235302c3435302e313235302c3435312e313235 302c3435312e313235302c3435322e313235302c3435322e313235302c3435332e 313235302c3435332e313235302c3435342e313235302c3435342e313235302c34

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -9- 35352e313235302c3435352e313235302c3435362e313235302c3435362e313235 302c3435372e313235302c3435372e313235302c3435382e313235302c3435382e 313235302c3435392e313235302c3435392e313235302c3435352e303235302c34 35352e303235302c3435352e313235302c3435352e313235302c3435352e323235 302c3435352e323235302c3435352e333235302c3435352e333235302c3435352e 34 32 35 30 2c 34 35 35 2e 34 32 35 30 2c 34 35 35 2e 35 32 35 30 2c 34 35 35 2e 35 32 35 30 2c s3031312c3132352c380d0a） Returninstruction：“OK\\r\\n”or"ERROR\\r\\n" OK\\r\\n（Hex4f4b0d0a）  Set SMS Content: Description:Thiscommandtellsthemodulethedatathatneedstobesent. Format:AAFA4data1data2 … dataN Example:AAFA40123456789 (Hex:414146413430313233343536373839;thesentcontentisthestring0123456789,send lengthis10bytes,maximumbytespersingletransmissionis19bytes) ReturnValue:"OK\\r\\n"(Hex:4F4B0D0A)or"+ERROR\\r\\n" Note: ①Considering mode switching, data processing, and response time on both sending and receiving sides,ifdataistransmittedfrequently,itisrecommendedtosetthesendingintervalto1–2seconds; therecommendedvalueis1.5s. ②Ensurebothsidesusethesamefrequency; whensendingorreceivingdata,SQ(squelchlevel,0– 8)cannotbesetto0.  ModuleAuto Upload SMS Content: Description:Thiscommandistriggeredwhenthemoduleautomaticallyuploadsreceiveddata. Format:AAFA5data1data2 … dataN Example:AAFA50123456789\\r\\n (ThereceivedSMScontentisthestring0123456789)

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -10- 10. Pin definition Pin NO. Pin name Description

1 MIC_in External audio signal can be connected; signal amplitude should not

2 GND Connecttothenegativeterminalofthepowersupply

3 VOXEN VOXenable,0:enableVOX;leaveopenor1todisableVOX

4 1 Encoding for 16 channel, 4bit organized the 16 channels. For example, if the bit is : 0110, it is channel 6. If it is 1001, it is channel 9. The Pin marked 8 means the maximum bit. The Pin marked 1 means the lowest bit. 5 2 6 8 7 4

8 H/L High/lowoutputpowercontrol;Leaveopenforhighoutputpower，low

leveltolowoutputpower.

9 SPKEN Receive signal indicatie Pin, usually low level, turn high after receiving

10,11,13,21 GND Exposedgroundpad

12 ANT OutputforRFsignal,Externalconnectantennawith50ohm

14,15 SPK OutputforAudio,Externalconnectloudspeakerwith8ohm/2W 16,17 VOL Audiovolumecontrol,Externalconnect100Kohmrotaryresistor

18 RXD RXDofthemoduleforUART,connecttoTXDoutsideofthemodule

19 TXD TXDofthemoduleforUART,connecttoRXDoutsideofthemodule

20 PTT PTTofthewalkie-talkiemodule,leaveopenor“1”isRx,“0”isTX,

22 VCC ExternalconnectPositivesupply3.3~5V.

23 CS “0” is for sleeping mode,”1” for normal working,， Default normal

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -11- 11. Mechanism Dimension(Unit:mm) 12. Order information Product Name Description SA828pro-U Workingfrequency:400~480MHz SA828pro-V Workingfrequency:134~174MHz 13. FAQ a) Whymodulecannotcommunicateproperly？ 1) Checkifthereispowerconnectionerror； 2) CheckifModuleisinnormalcommunicationmode； 3) Checkiffrequency,channel,andmutearesame； 4) Checkifmoduleisdamaged； b) Whytransmissiondistanceisnotfarasitshouldbe？ 1) Powersupplyrippleistoolarge； 2) Theantennatypesdonotmatch,ornotinstalledproperly； 3) Thesamefrequencyinterference； 4) Thesurroundingenvironmentisharsh,stronginterferencesources.

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -12- Appendix 1：DisplayandSendingTableofCTCSS/CDCSS Sending display Sending display Sending display 000 0 039 023I 122 023N 001 1 040 025I 123 025N 002 2 041 026I 124 026N 003 3 042 031I 125 031N 004 4 043 032I 126 032N 005 5 044 043I 127 043N 006 6 045 047I 128 047N 007 7 046 051I 129 051N 008 8 047 054I 130 054N 009 9 048 065I 131 065N 010 10 049 071I 132 071N 011 11 050 072I 133 072N 012 12 051 073I 134 073N 013 13 052 074I 135 074N 014 14 053 114I 136 114N 015 15 054 115I 137 115N 016 16 055 116I 138 116N 017 17 056 125I 139 125N 018 18 057 131I 140 131N 019 19 058 132I 141 132N 020 20 059 134I 142 134N 021 21 060 143I 143 143N 022 22 061 152I 144 152N 023 23 062 155I 145 155N 024 24 063 156I 146 156N 025 25 064 162I 147 162N 026 26 065 165I 148 165N 027 27 066 172I 149 172N

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -13- 028 28 067 174I 150 174N 029 29 068 205I 151 205N 030 30 069 223I 152 223N 031 31 070 226I 153 226N 032 32 071 243I 154 243N 033 33 072 244I 155 244N 034 34 073 245I 156 245N 035 35 074 251I 157 251N 036 36 075 261I 158 261N 037 37 076 263I 159 263N 038 38 077 265I 160 265N 078 271I 161 271N 079 306I 162 306N 080 311I 163 311N 081 315I 164 315N 082 331I 165 331N 083 343I 166 343N 084 346I 167 346N 085 351I 168 351N 086 364I 169 364N 087 365I 170 365N 088 371I 171 371N 089 411I 172 411N 090 412I 173 412N 091 413I 174 413N 092 423I 175 423N 093 431I 176 431N 094 432I 177 432N 095 445I 178 445N 096 464I 179 464N

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -14- 097 465I 180 465N 098 466I 181 466N 099 503I 182 503N 100 506I 183 506N 101 516I 184 516N 102 532I 185 532N 103 546I 186 546N 104 565I 187 565N 105 606I 188 606N 106 612I 189 612N 107 624I 190 624N 108 627I 191 627N 109 631I 192 631N 110 632I 193 632N 111 654I 194 654N 112 662I 195 662N 113 664I 196 664N 114 703I 197 703N 115 712I 198 712N 116 723I 199 723N 117 731I 200 731N 118 732I 201 732N 119 734I 202 734N 120 743I 203 743N 121 754I 204 754N

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -15- Appendix 2: Analog subtone comparison table Subtone coding 1 2 3 4 5 6 7 8 9 10 Sub-audio Subtone coding 11 12 13 14 15 16 17 18 19 20 Sub-audio Subtone coding 21 22 23 24 25 26 27 28 29 30 Sub-audio Subtone coding 31 32 33 34 35 36 37 38 Sub-audio

www.nicerf.com SA828Pro NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com -16- Appendix 3：SMD Reflow Chart WerecommendyoushouldobeytheIPCrelatedstandardsinsettingthereflowprofile: