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RF-83UP 

www.szrfstar.com

                                                                                                                                                    V1.3 - Jun., 2019 

Shenzhen RF-star Technology Co., Ltd.                                                                                                                   

Page  3  of  35

                                               

1.4 Functional Block Diagram 

 

 

 

 

 

 

 

 

 

 

Figure 1. Functional Block Diagram of RF-83UP 

1.5 Part Number Conventions 

The part numbers are of the form of RF-83UP where the fields are defined as follows:               

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2. Part Number Conventions of RF-83UP 

 

 

 

 

 

RF

 

8

 

Company Name

 

RF-STAR

 

-

 

3

 

Communication  Interface  Mode

 

UART

 

TX Power

 

+30 dBm

 

U

 

Frequency Range

 

862 MHz ~ 893 MHz & 900 MHz ~ 931 MHz

 

P

 

Package Mode

 

DIP  Package

 

32.0 MHz

 

MCU

 

SX1276

 

SPI

 

Match

ing

 

Match

ing

 

Limitter

 

SMA 

Connector

 

DCDC Converter

 

LDO1

 

LDO2

 

LDO3

 

LDO4

 

LNA

 

PA

 

Switching

 

Low-pass 

Filter

 

Power

 

Interface

 

Содержание 42UH

Страница 1: ...RF 83UP SX1276 868 MHz 915 MHz LoRa Module Version 1 3 Shenzhen RF star Technology Co Ltd Jun 19 2019...

Страница 2: ...H Half hole IPEX 25 40 3 Half hole 433 27 10 Contact Me RF 43UP SMA 24 43 Half hole 433 27 10 RF 43SH Half hole 25 40 DIP 433 27 10 Contact Me SX1276 RF 82UH Half hole IPEX 16 26 Half hole 868 915 18...

Страница 3: ...utput power 30 dBm 14 dBm high efficiency PA and an integrated PA Programmable bit rate up to 300 kbps High sensitivity down to 149 dBm Bullet proof front end IIP3 11 dBm Excellent blocking immunity L...

Страница 4: ...f the form of RF 83UP where the fields are defined as follows Figure 2 Part Number Conventions of RF 83UP RF 8 Company Name RF STAR 3 Communication Interface Mode UART TX Power 30 dBm U Frequency Rang...

Страница 5: ...iguration and Functions 7 2 1 Module Parameters 7 2 2 Module Pin Diagram 8 2 3 Pin Functions 8 3 Specifications 10 3 1 Recommended Operating Conditions 10 3 2 Handling Ratings 10 3 3 Current Consumpti...

Страница 6: ...Detailed Parameters 23 7 2 3 Examples 26 8 Implementation 30 8 1 Hardware Design 30 8 2 Trouble Shooting 31 8 2 1 Unsatisfactory Transmission Distance 31 8 2 2 Vulnerable Module 31 8 2 3 High Bit Erro...

Страница 7: ...e up Sleep MCU 20 Figure 11 EN Timing Diagram during Sending Data 20 Figure 12 EN Timing Diagram during Receiving Data 21 Figure 13 EN Timing Diagram during Setting Data 21 Figure 14 Recommended Reflo...

Страница 8: ...fault as 0 Crystal 32 MHz Package DIP Package Dimension 43 0 mm x 24 0 mm x 2 5 0 1 mm Antenna SMA connector Operating Humidity 10 RH 90 RH no condensation Storage Humidity 10 RH 90 RH no condensation...

Страница 9: ...83UP Pin Name Pin Type Description 1 RES_MCU I Reset pin NC 2 GND P Ground NC 3 SWIM_MCU IO SWIM pin of internal MCU 4 VCC P VCC Power supply pin when flash the firmware 5 S0 I Cooperate with S1 to d...

Страница 10: ...UART TX signal 9 EN O Pull the serial port high before sending data and pull low after sending Timed wake up pin pull high when wake up Pull high when module sending data pull low after sending 10 VCC...

Страница 11: ...25 90 Human Body Model HBM class2 2000 4000 V Moisture Sensitivity Level 2 Charged Device Model Class 3 500 1000 V 3 3 Current Consumption The current consumption characteristics of this module are ca...

Страница 12: ...Shenzhen RF star Technology Co Ltd Page 11 of 35 IDDT Supply current in Transmit mode with impedance matching RFOP 20 dBm on PA_BOOST 120 mA RFOP 17 dBm on PA_BOOST 87 mA RFOP 13 dBm on RFO_LF HF pin...

Страница 13: ...ar com V1 3 Jun 2019 Shenzhen RF star Technology Co Ltd Page 12 of 35 4 Application and Layout 4 1 Module Photos Figure 4 Photos of RF 83UP 4 2 Recommended PCB Footprint Figure 5 Recommended PCB Footp...

Страница 14: ...PB4 17 SPI1_SCK PB5 18 SPI1_MOSI PB6 19 SPI1_MISO PB7 20 PD4 TIM1_CH2 21 I2C1_SDA PC0 22 I2C_SCL PC1 23 PC2 24 PC3 25 PC4 26 PC5 27 PC6 28 SWIM PA0 U2 STM8151G4 C40 15pF C41 15pF R9 1K 1 2 3 4 5 6 7...

Страница 15: ...module to take effect Modifications in sleep mode can be used directly 5 2 Mode Switching 0 for Low Level 1 for High Level 1 Combine high and low levels of S0 and S1 to determine the working mode of t...

Страница 16: ...rove system efficiency and reduce power consumption 5 3 Normal Mode Type When S0 0 and S1 0 the module works in normal mode Transmitting The single packet length of wireless data transmitted by the mo...

Страница 17: ...receiving module working in the low power mode Therefore the data transmitted in the wake up mode can be received by the module in the normal mode wake up mode and low power mode Receiving Equivalent...

Страница 18: ...on format details When entering other modes from sleep mode the module will re configure the parameters During the configuration EN remains low After completion the module outputs high level so it is...

Страница 19: ...rent data transmission under the same channel the same module address and the same airspeed is shown in the figure below Figure 8 Transparent Transmission Function Diagram 6 2 Fixed Point Transmission...

Страница 20: ...ess and destination channel Listening and broadcasting are exactly the opposite Listening is passive Set the address of the module itself to FF FF and the module can receive the data sent by all modul...

Страница 21: ...tes whether any data of the module has not been transmitted through the wireless whether the wireless data has been received but has not been completely transmitted through the serial port or the modu...

Страница 22: ...igh level When the EN output in at low level it means that the module is busy and the working mode detection will not be carried out at this time When the module EN output is at high level it means th...

Страница 23: ...Supports normal mode wake up mode and sleep mode 3 AT_RSSI Send AT_RSSI in ASCII format the module returns AT_RSSI value hex For example AT_RSSI 2F Supports the operation in normal mode wake up mode...

Страница 24: ...response If the input is correct the data just entered will be returned 7 2 2 Detailed Parameters 1 The first group of data represents the type of control command AT_SET represents the control comman...

Страница 25: ...he wireless transceiver 0 0 1 2400 0 1 0 4800 0 1 1 9600 by default 1 0 0 19200 1 0 1 38400 1 1 0 57600 1 1 1 115200 bit3 bit2 bit1 means air rate bit3 bit2 bit1 Air Rate bps Description 0 0 0 0 3k Th...

Страница 26: ...in decimal is 1F corresponding to 900 channels MHz 931 MHz The first five commands can be expressed as AT_SET A0 03 E8 25 0F 5 The fifth group of data represents transmission mode IO driving method wi...

Страница 27: ...bit1 bit0 Transmit Power Approximate Value Description 0 0 30 dBm by default The external power supply must provide more than 250 mA current output capability And ensure that the power supply ripple...

Страница 28: ...66 Address 103 00 67 2 The third group of data serial parity bit baud rate air rate Serial Parity Bite Baud Rate bps Air Rate bps In Binary In Hex 8N1 9600 0 3k 00 011 000 18 8N1 9600 2 4k 00 011 010...

Страница 29: ...1E 31 931 1F 4 The fifth group of data transmission mode IO driving method wireless wake up time transmit power bit2 is not used and default as 0 Transmission Mode IO Driven Mode Wake up Time ms Trans...

Страница 30: ...00 0 00 80 Fixed point transmission Open circuit output 1000 20 1 0 011 0 00 98 Fixed point transmission Open circuit output 1500 20 1 0 101 0 00 A8 Fixed point transmission Push pull output 2000 20 1...

Страница 31: ...igital part of module and routed in the Bottom Layer all copper is well grounded 5 Assuming that the module is soldered or placed in the Top Layer it is also wrong to randomly route the Bottom Layer o...

Страница 32: ...ffect the communication distance 8 2 2 Vulnerable Module 1 Please ensure the supply voltage is between the recommended values The module will be permanently damaged if the voltage exceeds the maximum...

Страница 33: ...times 2 times based on the following reflow soldering profile 4 Temperature profile Reflow soldering shall be done according to the following temperature profile 5 Peak temperature 245 Table 6 Tempera...

Страница 34: ...szrfstar com V1 3 Jun 2019 Shenzhen RF star Technology Co Ltd Page 33 of 35 Figure 14 Recommended Reflow for Lead Free Solder 8 5 Optional Packaging Figure 15 Optional Packaging Mode Note Default tra...

Страница 35: ...06 V1 1 Add part number conventions Aroo Wang 2019 06 05 V1 2 Add the Chapter of Application Implementation and Layout Aroo Wang 2019 06 19 V1 3 Update the description Aroo Wang 2020 01 19 V1 3 Add L...

Страница 36: ...Y CO LTD Shenzhen HQ Add Room 601 Block C Skyworth Building High tech Park Nanshan District Shenzhen Guangdong China Tel 86 755 3695 3756 Chengdu Branch Add No B3 03 Building No 1 Incubation Park High...

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