The module_QCA9531 is a complete,small form factor 802.11a/b/g/n Wi-Fi Solution optimized for low power, low-cost, and highly integrated AP and consumer electronic devices,the module integrates all Wi-Fi functionality in a package friendly to low-cost PCB design, requiring only a external 3.3V power supply .
The module based on the single chip QCA9531 which integrates an 802.11n 2x2. MIMO MAC/BB/ radio with internal PA and LNA. It supports 802.11n operations up to 144 Mbps for 20 MHz and 300 Mbps for 40 MHz,and 802.11b/g data rates.
The module support AP mode and client mode at the same time , and include mass service
application software to reduce the research and design work of customer.
Smart home network equipment
1,Wireless WIFI device
1,PCI Express 1.1 Root Complex interface
2,One USB 2.0 interface
3,Four IEEE 802.3 Ethernet LAN interface
4,One low-speed UART (115 Kbps) and multiple GPIO pins for general purpose I/O
5,Built in two way 2.4GHz wireless RF transceiver antenna, fully integrated RF Front-End including PAs and LNAs
6,Requiring only a external 3.3V power supply
7,512M16bit Random access memory
8,16Mb SPI Flash
2. Module Hardware Overview
2.1 Block Diagram
The general Hardware architecture is shown below Figure:
Module Block Diagram
2.3 Pin Description
The MODULE_QCA9531 pins have many function ,including a x1 PCI-E channels, a USB2.0 interface, a JTAG debug interface, four IEEE 802.3 Ethernet LAN interface, and other GPIOs. And the tables below are the description.
3 Electrical Characteristics
Absolute Maximum Rating
Power Supply Voltage
Power Supply Current
Peak Reflow Soldering Temperature <10s
4 Manufacturing Process Recommendations
When the module is welded, please note that it's heating time and heating temperature, if you do not know how to set the corresponding parameters, please refer to the following figure, it helps to make the module get good welding performance, and not to appear unnecessary problems. Of course, you can adjust according to the actual situation.
5 Recommend Layout
The following figure is the specific shape and size of the module, you can adjust your PCB package, in order to facilitate Lay_out.