SX1278IMLTRT Semtech SX1278 射频开关RF收发器 SX1278IMLTRT匹配:射频开关:AS179-92LF Semtech SX1276 & SX1278 LORA Transceiver Semtech SX127x Low Power Long Range Transceiver features the LoRa? long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. The SX127x achieves a sensitivity of over -148dBm using Semtech's patented LoRa? modulation technique. The high sensitivity combined with the integrated +20dBm power amplifier makes it optimal for any application requiring range or robustness. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption. Features LoRa Modem 137Mhz to 1.02GHz (SX1276); 137MHz to 525MHz (SX1278) 168dB maximum link budget +20dBm - 100mW constant RF output vs. V supply +14 dBm high efficiency PA Programmable bit rate up to 300kbps High sensitivity: down to -148dBm Bullet-proof front end: IIP3 = -11dBm Excellent blocking immunity Low RX current of 9.9mA, 200nA register retention Fully integrated synthesizer with a resolution of 61Hz FSK, GFSK, MSK, GMSK, LoRaTMand OOK modulation Built-in bit synchronizer for clock recovery Preamble detection 127dB Dynamic Range RSSI Automatic RF Sense and CAD with ultra-fast AFC Packet engine up to 256 bytes with CRC Built-in temperature sensor and low battery indicator Automated Meter Reading. Home and Building Automation. Wireless Alarm and Security Systems. Industrial Monitoring and Control Long range Irrigation Systems SX127x Evaluation Kits Semtech SX127x Evaluation Kits are based around the Eiger platform which allows the user to test every aspect of the radio, both from the system and RF point of view. SX127x Evaluation Kits come in a series for use as a single or a whole design package with varying speeds and antennas for the LoRa low power wireless standard. Evaluation Kit Contents 2 SX127xRF1 modules 2 Eiger platforms 2 Dipole antennas for LF frequency band 2 Dipole antennas for HF frequency band 2 Mini-USB cables 2 Touch Screeln Styluses 基于SEMTECH的SX1278开发的SPI接口模块,具有新LORA扩频技术的高灵敏度的RF模块,模块带有2.00mm标准接口,工作频率:433-510MHz(868、915MHz可以定制)发射功率:100mW(20dbm);接收灵敏度:-139dbm(SF=1,LORA模式);发射电流:120mA;接收电流:13mA,自带AFC;256byte FIFO TXRX;调制模式:ASK/FSK/GFSK/Lora国内ISM频段免费使用产品尺寸:2.75*2.5CM信道抑制:56dbmSPI接口 空旷地传输距离:5000米(1.2K速率,10k Dev 22k BW)应用市场:1)远程遥控和远程数据采集系统 2)无线抄表(水表、电表、气表)3)无线点菜机4)工业数据采集、传输、智能控制系统5)无线报警系统6)智能家具系统7)婴儿监控系统/医院寻呼系统8)油田、矿区、工地、工厂等原有485/232接口系统9)无线小数据传输系统 应用:l无线水气热表抄表l较远距离数据通讯l无线传感器网络l无线自动化数据采集l野外数据遥控、遥测l各种变送器,流量计智能仪表l楼宇小区自动化与安防l 矿山石油设备控制 通讯l 环境、节能、温度监测l 电气电力设备 特点:l3000米传输距离(0.81Kbps)l 工作频率433MHz,470MHz,868MHz,915MHz可选l-132dBm@810bps**高灵敏度l较大100mW发射功率lLoRa扩频调制方式 l零等待唤醒,具有空中唤醒功能l高效的循环交织纠错编码l四种工作模式,待机电流2.5uAl 内置看门狗,保证长期可靠运行 SEMTECH**推出带扩频技术的Sub-GHz产品芯片,由于其相对传统FSK与GFSK在传输距离和抗干扰能力方面的优势而倍受市场关注,目前,SEMTECH的扩频芯片SX1276/7/8覆盖了几乎整个Sub-1GHz的4个频段:433/470/868/915M。 其中,SX1278与SX1276性能几乎没有差别,SX1278主要针对于433M与470M网段的地区,包括中国,东南亚,南美与东欧地区。SX1276则主要覆盖欧洲与北美等使用的868M和915M频段 二:产品特征:1:发射频率:433MHZ(可定制)2: FSK/GFKS技术,LoRa(远程)扩频技术3:+20dbm输出功率4:波特率可达300 kbps5:高接收灵敏度-139dbm.6:低功耗接受电流:10-12mA7: **强抗干扰性(信道抑制比:56db)8: ISSI 信道侦测功能9: 传输模式:FIFO/直接模式(推荐FIFO包模式)10: 256位FIFO TX/RX11:ISM多波段, 不需要申请频率免费使用.12:智能复位、低电压监测,定时唤醒、低功耗模式、休眠模式13:传输距离空旷可达5KM。14:尺寸:19*22.4mm 三:产品应用1:无线抄表(水表、电表、气表)2:无线点菜机3:油田、工矿、工地、工厂等控制系统4:工业数据采集、传输、智能控制系统5:无线报警系统6:智能家居系统7:医疗、医院呼叫系统8:楼宇安防警报系统。