Bluetooth Power Classes 1, 2, 3 : BLE Power Levels and Range Specifications
Bluetooth power classes, defined as Class 1, Class 2, and Class 3, determine the power levels and range capabilities of Bluetooth devices. Each power class has specific output power limits, influencing how far and how well a device can communicate.
Bluetooth defines three main power classes used by the devices. Power control is used to keep the radiation within the limit so that system works efficiently without interfering with the neighbour bluetooth devices. The power control algorithm is designed between master and slave devices using link management protocol.
This table mentions the differences between Bluetooth power classes, covering their applications, distance coverage or range specifications and power consumption characteristics.
| Power class type | Power limit | Distance coverage |
|---|---|---|
| Bluetooth power Class1 | Output power of 100mW( 20 dBm) to achieve maximum range. Minimum power is 1mW. Power control is mandatory to have in this bluetooth power class. |
100 meter |
| Bluetooth power Class2 | Max. output power 2.4mW(+4dBm) Min. output power 0.25mW(-6dBm), Power control is optional in this bluetooth power class. |
10 meter |
| Bluetooth power Class3 | Lowest output power is possible with this power class, nominal is 1mW. | 1 meter |
Conclusion
Selecting the appropriate Bluetooth power class is essential for optimizing device performance and extending battery life. With a clear understanding of bluetooth class 1 2 3 power levels, you can choose the right power settings for your Bluetooth devices, ensuring optimal coverage and connectivity. Use this guide to make informed decisions on power class selection for various Bluetooth applications.
Similar posts on Bluetooth technology
BLE (Bluetooth Low Energy) Links
Bluetooth v5.0 versus v5.1 >>
BLE states and state diagram >>
BLE advertising and data channels >>
BLE protocol stack architecture >>
BLE connection process >>
BLE advertising and data packet formats >>