Low Power FSK Two-way RF Transceiver Module with AMICCOM A7139 Chip
Product Description
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
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
| 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
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!