SA858 G-NICE | Alldatasheet
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www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -2- Catalogue Note: Revision History Version Date Comment V1.0 2015-5-20 Firstrelease V1.1 2016-10-10 SA858AMechanicaldimensionadded V1.2 2017-06 Logoupdated V1.3 2018-5 Modifythesizechart V1.4 2019-1 Modifyparameters V1.5 2020-11 Updatedescription V1.6 2023-8 Updatefrequency V1.7 2024-10 Updatefrequency V1.8 2025-06 Updatecrystaloscillatorparametersandoperatingfrequency
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -3- 1. Overview SA858 is a professional 4Wwalkie talkie module. Strong RF circuit, DSP,digital interface, and audio amplifierisbuiltin.BesidesUartcommand,usercanuseourprovidedPCsoftwaretoconfigureallthe parameters. The parameters includes: Tx frequency, Rx-frequency, Tx CTCSS /CDCSS, Rx CTCSS/CDCSS , digital volume and SQ. To avoid the heating for this high power walkie talkie, we have done special handling on the software with a strong radiator added, which makes it has no problemforlongtimecontinuousworking. WhenSA858is connected withSA858-PJ,it iseasy toorganize a professional all in one walkie talkie system, the system include 16 predefined frequency channels, adjustable volume, configurable CTCSS/CDCSS.Userneedonlytoconnectwithpowersupplyandspeaker. Simplified interface and ultra small size make SA858 widely used in various applications and convenientlyembeddedintovarioushandhelddevices. 2. Features UHFbandfrequency:400~480MHz VHFbandfrequency:134~174MHz (2frequencybandsareoptional) TxandRxfrequencycanbesetalone Bandwidth12.5/25KHz Distanceupto7to10kminOpenarea Highsensitivity：-124dBm Highintegratedandsmallsize 38CTCSS&166CDCSS (canbesetbyPCsoftwareandserialport) Outputpowerupto4W Analogvolumeadjustablelimitless High/lowoutputpowerselection（1W/4W） Widerangeofworkingvoltage3.3-9V 0.5ppmTCXO,stableperformance 8adjustabledigitalvolume 3. Application Smallprofessionalwalkietalkie Invisibleintercomsystem Buildingcommunitysecuritysystem Sportproducts Handheld/Pocketabledevice Audiosurveillancesystem 4. Block Diagram
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -4- 5. Electrical Characteristics ★ Note：Inhighlevel,thepinsarein3.3V. Parameter Test condition Min. Typ Max. Unit Operatingvoltagerange -- 3.3 8 9 V Operatingtemperaturerange -- -30 20 70 ℃ Power Consumption SleepingCurrent -- -- ≤3 uA RXcurrent -- -- 60 mA TXcurrent(highoutputpower) @8v,424.75MHz 1400 1500 mA TXcurrent(lowoutputpower) 850 900 mA TXcurrent(highoutputpower) @4V,424.75MHz 1100 1150 mA TXcurrent(lowoutputpower) 650 700 mA TX Frequency Parameter Operatingfrequencyrange UHF 400 450 480 MHz VHF 134 150 174 MHz TXcurrent(highoutputpower) @VCC=4.0V 30 31 32 dBm TXcurrent(lowoutputpower) 26 27 28 dBm TXcurrent(highoutputpower) @VCC=8.0V 35 36 36.5 dBm TXcurrent(lowoutputpower) 30.5 31.5 32 dBm Modulationfrequency @1.5KHz/2.5KHz frequencydeviation 10 mV Audiomodulationdistortion @1.5KHz/2.5KHz Frequencydeviation -- 2 5 % SignaltoNoiseRatio @1.5KHz/2.5KHz frequencydeviation 38 40 45 dBm AdjacentChannelRatio @12.5Koffset -- -60 dBc CTCSSModulationfrequency 0.35 0.5 0.75 KHz RX Frequency Parameter RXsensitivity 13dBoutputaudioSNR -- -124 -- dBm RXSNR @1.5KHzFrequency deviation 45 50 -- dB Audiooutputpower -- -- 2 -- W Audiooutputimpedance -- -- 8 -- OHm
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -5- 6. Application circuit
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -6- 7. Parameter setting SA858 module provides a standard UART interface for users to configure and read the parameters.Modulehasintegratedmemoryunit,allsettingparameterscanbesavedwhenpower off.Through USB bridge board, users can connect module with PC device, and we will provide with PC software free for users to configure the inner frequency. It is very easy to use. Wire connectingmethodisasbelow: Afterconnectedsuccessfully,PCdevicecanreadthecurrentparameters,showasbelow:
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -7- TXchannel：TXfrequency，16group，defaultfactorysetisasaboveinterface. RXchannel：RXfrequency，16group，defaultfactorysetisasaboveinterface.。 TXCTCS：TXimitationsilentletter，38leveltochoose，defaultsetis0. TXCDCS：TXdigitalsilentletter，166leveltochoose，defaultsetisnone. RXCTCS：RXimitationsilentletter，38leveltochoose，defaultsetis0. RXCDCS：digitalsilentletter，166leveltochoose，defaultsetisnone. SQ：RXSquelchLevel，8leveltochoose，defaultis1。 ★ Note：UserscanonlychooseoneofCTCSorCDCS. 8.Communication protocol Commands Format: Aftermoduleisworking,theUARTparameterstosendthecommandarefixedto: BaudRate：9600bps DateBit：8 Stop：1 Parity:None Commands return format: Returnsucceeded：OK\\r\\n，failed：ERROR\\r\\n Frame format definition: AllcommandsincommunicationprotocolaresendingbyASCIIcode. ★ Note：SpecificCTCSScorrespondvalueviewonAppendix1. Read Module Name and Version Number Format：AAFA A ReturnValue：SAxxx_VERx.x\\r\\n Example：AAFA A （Hex：0x410x410x460x410x41） Return：SA858_VER1.0\\r\\n （Hex：0x530x410x360x310x300x5f0x560x450x520x310x2E0x300x0D0x0A） Read parameter Format：AAFA 1 Parametersinstructionisinsettinggroupcommands. Example：AAFA 1 （Hex:0x410x410x460x410x31 ） Return：AA
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -8- 5250,011,125,8 （Hex: 4141 3435 302e 31 3235 302c 34 3530 2e 3132 3530 2c 3435 312e 3132 35 302c 34 35 312e313235302c3435322e313235302c3435322e313235302c3435332e313235302c 3435332e313235302c3435342e313235302c3435342e313235302c3435352e313235 302c3435352e313235302c3435362e313235302c3435362e313235302c3435372e31 3235302c3435372e313235302c3435382e313235302c3435382e313235302c343539 2e313235302c3435392e313235302c3435352e303235302c3435352e303235302c34 35352e313235302c3435352e313235302c3435352e323235302c3435352e32323530 2c3435352e333235302c3435352e333235302c3435352e343235302c3435352e3432 35302c3435352e353235302c3435352e353235302cs3031312c3132352c380d0a） Set to default parameter Format：AAFA 2 Return：“OK\\r\\n”or"ERROR\\r\\n" Example：AAFA 2 （Hex:4141464132 ） Return：OK\\r\\n（Hex:4f4b0d0a） Setting group commands： Description：Thiscommandistotellthemoduleworkingparametersettingsinformation. Parameterdescription： TX_SUBAUDIO：SendCTCSSvalue RX_SUBAUDIO：ReceiveCTCSSvalue SQ：Squelchlevel(0～8) （0:monitormode,cannotusedinscanmode） (Note: Transmitter and receiver can use different CTCSS value，000: no code 001—038: CTCSS， 039—204:DisplayandSendingTableofCTCSS,CDCSSviewonAppendix1) Example：AAFA3
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -9- 50,011,125,8 （Hex:41 414641 333435 302e 3132 35302c 34 35302e 313235 302c 3435 312e 3132 3530 2c3435312e313235302c3435322e313235302c3435322e313235302c3435332e3132 35302c3435332e313235302c3435342e313235302c3435342e313235302c3435352e 313235302c3435352e313235302c3435362e313235302c3435362e313235302c3435 372e313235302c3435372e313235302c3435382e313235302c3435382e313235302c 3435392e313235302c3435392e313235302c3435352e303235302c3435352e303235 302c3435352e313235302c3435352e313235302c3435352e323235302c3435352e32 3235302c3435352e333235302c3435352e333235302c3435352e343235302c343535 2e343235302c3435352e353235302c3435352e353235302cs3031312c3132352c380d 0a） Returncommands：“OK\\r\\n”or"ERROR\\r\\n" OK\\r\\n（Hex:4f4b0d0a） 9. Accessories 1) Antenna Antenna is an important part in communication system. Its performance will influence the whole communication system. This module requires antennas impedance in 50oHm. Regular used antenna is rubber straight antenna, sucker antenna, telescopic antenna and so on. Users can choose the antenna accordingtotheapplicationenvironment.Tomakesure modulesinthebest workingmode,we recommend theantennasfromourcompany.
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -10- 2) Accessoryboard To make it convenient to use, we have an accessory board SA858-PJ which can be used with SA858 walkietalkiemodule，thesmallboardextendthepinsofthemodulebythespecialFPC，theboardhas integrated with microphone, channel knob, volume knob, PTT button and other device, Users only need to add an external speaker so that it can be used as a high power and micro walkie talkie. Accessoryboardasbelow： 3) Heatsink Thiswalkietalkiemoduleisahighpowerwirelessdevice，itwillhasbiggercurrentduringtransmitting， so we have equipped module with a specialized heat sink to make sure module can get the best performancewhenitisgenerateheatinalongtime，showasbelow： ★ Note：Ifusershavetheirownheat sinkdevice,orourstandardheat sinkdimensionisnotsuitablefor theapplication,theycanalsochoosebaremodulewithoutradiator(SA858B)..
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -11- 10. Pin definition Pin No. Pin name Description
1 MIC+ Connectpositiveofexternalmicrophone
2 GND Connectnegativeofexternalmicrophoneorpowerground
3 SPK/VOL Eternalconnect8ohmand2Wspeakerandvolumeadjustelectronicequipment
4 SPK Audiooutputpin,externalconnect8oHmand2Wspeaker
5 H/L RFhighandlowerpowerpin，connect“0”islowerpower，offishighpower
6 VOL Audiovolumeadjustpin，externalconnect200Kadjustableelectronicequipment
7 GND Externalconnectnegativepower
8 RXD Datareceiveserialport
9 TXD Datasendserialport
10 VOXEN Volumeenablepin，“0”isopenvolumecontrolfunction，“1”isclose，defaultis“1”
11 PTT Send/receivecontrolpin，“0”issend；“1”isreceive，defaultisreceive
12 8 Frequency16channels,8421code，No.8bits，defaultis“1”output 13 4 Frequency16channels,8421code，No.4bits，defaultis“1”output 14 2 Frequency16channels,8421code，No.2bits，defaultis“1”output 15 1 Frequency16channels,8421code，No.1bit，defaultis“1”output
16 PD Modulesleepenable，“0”issleepmode；“1”normalworking，defaultisnormal
17 VCC Connectpositivepower
18 GND Connectnegativepower
19,21 GND Connectantennaground
20 ANT RFsignaloutput，externalconnect50oHmantenna
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -12- 11. Mechanical dimension(Unit:mm) SA858A: SA858B、SA858-PJ：
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -13- 12. Order information Outfactoryitem Description SA858A Highpowerwalkietalkiemodulewithheatsink SA858B Highpowerwalkietalkiebaremoduleboardwithoutheatsink SA858-PJ Moduleaccessory,integratedchannelknob,volumeknob,microphoneandPTTbutton 13. FAQ a) Whymodulescannotcommunicateproperly? 1) Checkifthereisapowerconnecterror； 2) Checkifmodulesareinnormalcommunicationmode； 3) Checkifallmodulearesettinginthesamefrequency,channelandCTCSS； 4) Checkifmodulesarebroken. b) Whythetransceiverdistanceisnotasfarasitsupposed? 1) Checkifthepowerrippleistoohigh； 2) Checkiftheantennaisnotmatchorinstalledincorrectly； 3) Check if there is same frequency interference surround, or there is a bad environment, or strong interferencesource.
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -14- Appendix 1：Display and Sending Table of CTCSS Send Display Send Display Send 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 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
www.nicerf.com SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -15- 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 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 SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -16- Appendix 2：Analog subtone comparison table Appendix 3：SMD reflow chart WerecommendyoushouldobeytheIPCrelatedstandardsinsettingthereflowprofile: 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 SA858 NiceRF Wireless Technology Co., Ltd. Rev 1.8 sales@nicerf.com -17-