Sign In / Register

Information

XL4432-SMD wireless module is adopts the Silicon Labs Si4432 B1 version chip to design, low power wireless transceiver module. SI4432 consists of one of the launch Silicon 09 years Silicon Labs EZRadioPRO series ISM wireless chip, is a highly integrated wireless ISM band transceiver chip, can work in the 240-960 MHZ frequency range, receiver with high sensitivity (-121 dBm) and the maximum output power can reach +20DBm, which satisfy a certain degree of development RF signal amplification problem. Then maximum power settings, open communication distances of up to 1000 meters. The module integrates all RF related function and the device, the user does not need to understand the relevant knowledge of radio, you can use the module easily develop a stable and reliable performance of wireless related products

Characteristic

1 XL4432-SMD is the original Silicon related data based on the elaborate design professional manufacturing, the various properties of the chimeric SI4432.

2 Inductance capacitance module device all adopt the Murata high-frequency specifications, crystal for high accuracy specifications 10ppm secure wireless module features fully embodies.

3 Using high precision machine environmental protection lead-free soldering process, all the modules have been professional equipment testing, module of consistency and stability are fully guaranteed.

4 SPI interface, small size, stamp hole convenient interface embedded design, fully extended distance, the equipment you strive for further improvement.

Note

1, around the antenna must be open, away from the battery, metal and so on, around the antenna PCB prohibits copper, when necessary, PCB and antenna overlap to hollow out or punch.

2, when the design of the product is placed in the metal shell, metal cabinet, must use the signals from the antenna feeder antenna out external SMA antenna or chuck antenna, otherwise the signal is the metal shield and the distance reduced, requirements of distance, using high gain antenna.

3, the power supply design. Power supply is the heart of the whole system, design should focus on the. Si4432 wireless module recommended working voltage of 3.3V, the transient current can provide more than 200mA.

4, using DCDC, LDO buck, but also consider the ripple and the impact of surge current. In the access module power supply ripple can be used in place of the LC network processing; surge current can be connected with a large capacitor processing.

5, if the battery power supply, should consider the transient current of the battery is sufficient, recommend the use of lithium battery Ni MH battery is not recommended for dry battery.

6, software design, should try to use packet communication, communication setting rate is low, the farther the distance.

7, when the communication rate communication using the program of DEMO, calculating tool parameters, recalculate the communication parameters. And according to their own requirements for product communication, appropriate adjustments