SA818 high-integrated Embedded walkie talkie module Descriptions: SA818 is a low cost but high performance area, it can easily achieve integrated walkie talkie module.With built-in high communication. Simplified performance microcontroller, narrow band rf interface and ultra small size make transceiver and standard UART interface it can be this module a wide range of easily used and succeed all the walkie talkie function applications, also can with good quality voice and long distance transmission. conveniently embed into various Users only need to connect external audio amplifiers, handheld devices,to improve the microphone or speaker with this module ,then it can comprehensive performance of work as a small walkie talkie with 1W output. In open end products. Features: Frequency: 400 ~ 480 MHz (UHF) EEPROM, data kept unchanged 134~174MHZ (VHF) even powered off Tx and Rx frequency, Tx and Rx 38 CTCSS CTCSS,CDCSS can be set alone. 166 CDCSS Band width 12.5/25KHz 8 level squelch Output power up to 1 w 8 adjustable volume Transmission distance up to 3.5 to 5 km in high/ low power is optional (500 mw)-1w Open area wide range of working voltage 3.3 to 5.5 V sensitivity: - 124 DBM 1 ppm KDS TCXO crystal, size Application: small walkie talkie Invisible intercom system Sport products building community security system audio surveillance system Specification: Parameter Test condition Min Typ Max Unit Power supply 3.3 4.2 5.5 V Working Temperature -30 25 85 ℃ range Current consumption Sleep current @PD = uA ≤1 RX current 60 mA TX 650 750 mA TX 450 550 mA Transmitting RF parameters Frequency range UHF 400 480 MHZ Frequency range VHF 134 174 MHZ Out 28 29.5 31 dBm @VCC=4.0V Out 25 26.5 27 dBm @1.5Khz/2.5KHZ Modulation frequency 10 mV frequency deviation
SA818 high-integrated Embedded walkie talkie module Descriptions: SA818 is a low cost but high performance integrated walkie talkie module.With built-in high performance microcontroller, narrow band rf transceiver and standard UART interface it can be easily used and succeed all the walkie talkie function with good quality voice and long distance transmission. Users only need to connect external audio amplifiers, microphone or speaker with this module ,then it can work as a small walkie talkie with 1W output. In open area, it can easily achieve communication. Simplified interface and ultra small size make this module a wide range of applications, also can conveniently embed into various handheld devices,to improve the comprehensive performance of end products. Features: Frequency: 400 ~ 480 MHz (UHF) 134~174MHZ (VHF) Tx and Rx frequency, Tx and Rx CTCSS,CDCSS can be set alone. Band width 12.5/25KHz Output power up to 1 w Transmission distance up to 3.5 to 5 km in Open area sensitivity: - 124 DBM size EEPROM, data kept unchanged even powered off 38 CTCSS 166 CDCSS 8 level squelch 8 adjustable volume high/ low power is optional (500 mw)-1w wide range of working voltage 3.3 to 5.5 V 1 ppm KDS TCXO crystal, Application: small walkie talkie Invisible intercom system Sport products building community security system audio surveillance system Specification: Parameter Test condition Min Typ Max Unit Power supply 3.3 4.2 5.5 V Working Temperature range -30 25 85 ℃ Current consumption Sleep current @PD = ≤1 uA RX current 60 mA TX 650 750 mA TX 450 550 mA Transmitting RF parameters Frequency range UHF 400 480 MHZ Frequency range VHF 134 174 MHZ Out @VCC=4.0V 28 29.5 31 dBm Out 25 26.5 27 dBm Modulation frequency @1.5Khz/2.5KHZ frequency deviation 10 mV
SA818.docx