V-Chip Microsystems VT-SX1278-433M Скачать руководство пользователя страница 4

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VT-SX1278-433M

PCB Description

Pin Configuration

Pin name

Pin type

Description

VCC

Power(Analog)

1.8 V - 3.7 V analog power supply connection.

GND

Ground

Connect to the system 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 from PA, connect to the Antenna.

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 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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