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Low Power FSK Two-way RF Transceiver Module with AMICCOM A7139 Chip

DL-RTA7139 was designed base on AMICCOM A7139 wireless transceiver chip from Taiwan. It is a compact and low power wireless transceiver module, mainly set to 315/433/470/868/915/MHz ISM/SRD frequency bands

  • DL-RTA7139
  • 433M
  • AMICCOM A7139
  • -30~20dBm
  • 1.9~3.6V
  • -107dBm
  • 1200m
  • 16*12.5*2
Quantity:

High-performance FSK Transceiver Module with AMICCOM A7139 chip


Module introduction

DL-RTA7139 was designed base on AMICCOM A7139 wireless transceiver chip from Taiwan. It is a compact and low power wireless transceiver module. AMICCOM A7139 is an ISM band wireless transceiver chip, mainly set to 315/433/470/868/915/MHz ISM/SRD frequency bands, with very low power consumption (e.g.: under 434MHz band, power consumption in RX mode is just 3.8mA).

It is ideal for battery-powered long-distance wireless transmission, and provides a very good link budget, with high class E power output up to 20dBm, and a maximum transmission rate of 250Kbps. Users can easily develop wireless products with stable performance and high reliability by this module, without having a deep understanding of RF circuit design.


Features

● Compact size, SMD stamp edge half-hole encapsulation;

● Operating frequency: 433.92 Mhz (other frequencies, 315M ~ 915MHz, can be customized);

● Transmission distance: open air around 1.2 km (indoor test: 10-layer stable transmission);

● Supports FSK, GFSK modulation and programmable control;

● The communication rate ranges from 2 Kbps to 250 Kbps, which is programmable;

● The maximum output power is 20dBm;

● High reception sensitivity: -119dBm@2kbps;

● Low power consumption, receiving current <4mA (AGC Off);

● Low power mode with power consumption <0.3uA, ideal for battery-powered wireless

transmission in long distance

● Independent 64BYTE transmit/receive data buffer

● Switching time between standby and receive state can be set (WOR function), to reduce the

power consumption

● Supports RSSI signal strength detection, and battery low-voltage detection

● Power supply: DC1.9~3.6V


Applications

● ISM band data communication 

● Intelligent Building

● Intelligent Home Security 

● AMR (Automatic Mobile Robot)

● Wireless remote control 

● Architectural Automation

● Wireless Sensor Network 

● Energy Control and Management


Download Center

DL-RTA7139 Specification V1.1 do


Technical Parameter

DC characteristics

No Characteristics Parameter Remark
1 Working voltage 1.9~3.6V DC
2 Frequency range 433.92MHz

Other frequencies can be customized

3 Transmit power  -30~20dBm Programmable
4 Receive sensitivity -107dBm@100Kbps; -119dBm@2Kbps  FSK/433.92Mhz
5 Modulation FSK/GFSK Programmable
6 Transmission rate 2K~250Kbps
7 Receiving current <4mA 
8 Transmission current 31mA@12.5dBm, 82mA@20dBm AGC Off
9 Standby current <0.3uA

Please refer the chip working mode

10 Communication distance 1200m n an open air
11
Working temperature -20~85℃



Pins Definition

7139_01

Pin Name Description Remark
1 VDD/REG 

Power supply 3.3V

RF VDD
2

GND 

Grounding, common ground with the system


3

SCS

CS input of SPI

DI
4

SCK

Clock input of SPI 

DI

5

SDIO

SPI data interface 

DI/O
6

GPIO1

Digital signal IO/1 ,SPI data output 

DI/O
7 GPIO2 

Digital signal IO/2 ,SPI data output 

DI/O
8

CKO

Digital signal SCLK output, SPI data output DO
9

GND

Grounding, common ground with the system


10 GND Grounding, signal ground

The antenna shield is well grounded

11 ANT RF output, Antenna interface
12 GND Grounding, signal ground


Size

7139_02

Dreamlnk is a high-tech enterprise specializing in ISM band micropower wireless communication technology, providing various types of RF modules and one-stop IoT solutions, including RF Transceiver Modules, Antennas, Remote Controls, and customized wireless RF solutions. Welcome to inquire!

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