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COPYRIGHT @ 2016 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd                                                                      v1.0.0 

VT-SX1278-433M 

General Description

 

VT-SX1278-433M is based on RF Transceiver SX1278 of SEMTECH

it’s a small size and ultra low power 

UHF wireless module. SX1278 is a low cost true single chip UHF transmitter designed for very low power 

wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD 

(Short Range Device) frequency bands at 315 and 433 MHz, The MAX RF output power can be set as high as 

+20dBm, with data rate as high as 300Kbps. The module integrated many RF functions thus you can use it 

conveniently and reducing your development time. 

Features 

 

Central frequency is 433MHz, Frequency bands :410~525MHz 

 

Programmable output power up to +20dBm for all supported frequencies

the communication distance is above 

3000m in sight . 

 

High receiver sensitivity down to -148dBm(at LORA mode) 

 

Programmable baseband modulator with FSK/OOK/LORA 

 

Programmable data rate up to 300Kbps 

 

256-byte TX data FIFO 

 

Digital RSSI output. 

 

Low current consumption with receive mode <14mA, transmit mode at +10dBm output power <140mA 

 

Low current consumption at power down state <1uA 

 

Integrated analog temperature sensor 

 

Efficient SPI interface, All registers can be programmed with one “burst” transfer 

 

Small dimension

20.5

×

15.5

×

2.0mm 

 

Operating supply voltage

1.8

3.7V DC 

Applications 

 

Logistics Tracking System, Warehouse patrol, Electronic label.   

 

Replace RS232 and RS485 in data transmission 

 

Industrial monitoring and control in data acquisition 

 

AMR – Automatic Meter Reading 

 

Home and building automation 

 

Consumer Electronics products of wireless control 

 

Wireless alarm and security systems 

 

Wireless sensor networks 

Содержание VT-SX1278-433M

Страница 1: ...Chip Microsystems Inc Add 6 floor Longtang Building Nan Shan Cloud Valley Innovation Industrial Park No 1183 Liuxian Road Nanshan District Shenzhen city Tel 86 755 88844812 Fax 86 755 22643680 E mail sales digirf com ZIP 518055 Web www digiRF com ...

Страница 2: ... up to 20dBm for all supported frequencies the communication distance is above 3000m in sight High receiver sensitivity down to 148dBm at LORA mode Programmable baseband modulator with FSK OOK LORA Programmable data rate up to 300Kbps 256 byte TX data FIFO Digital RSSI output Low current consumption with receive mode 14mA transmit mode at 10dBm output power 140mA Low current consumption at power d...

Страница 3: ... and harmonics 30dBm TX power 20dBm Communication distance 3000m 0 8kBaud data rata 20dBm output power Antenna impedance 50ohm Operating temperature 20 85 C Storage temperature range 50 125 C Dimension 20 5 15 5 2 0mm See more in PCB description Note 1 The module transmission data rate will affect Transmission distance the higher the data rate the closer the distance and the lower the receiving se...

Страница 4: ...em ground RST Digital Input Reset active low MOSI Digital Input Serial configuration interface data input SCK Digital Input Serial configuration interface clock input MISO Digital Output Serial configuration interface data output Optional general output pin when CSN is high NSS Digital Input Serial configuration interface chip select active low DIOx Input output GPIO ANT RF I O RF output signal fr...

Страница 5: ...COPYRIGHT 2016 Shenzhen V CHIP MICROSYSTEMS Co Ltd v1 0 0 VT SX1278 433M Dimension ...

Страница 6: ... module in order to make the product work well Some recommend antennas as the table below Spring antenna Standard Characteristic small size low cost embedded conveniently SMA rubber antenna Optional Characteristic medium scale low cost high gain Magnetic Mount Antenna Optional Characteristic high gain Magnetic Mount suitable for mount on iron box Note Standard is for free optional need another pay...

Страница 7: ...coaxial line replace it with a higher gain antenna 2 The work space contains a same frequency interference source or a strong magnetic field interference power source disturbance Try to change the carrier frequency or get far away from the source of the disturbance 3 The power supply is not strong Check the voltage and the current whether it is enough High data error 1 The power supply ripple is t...

Страница 8: ...t copyright mask work right or other V CHIP intellectual property right relating to any combination machine or process in which V CHIP products or services are used Reproduction of V CHIP information in V CHIP data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this in...

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