3 Bluetooth Low Energy Gain Table

For Bluetooth Low Energy, both the PPA and PA gains are fixed at 6 and no changes must be made to the PPA and PA gains.

The Bluetooth Low Energy DG gain allows the user to adjust the output power to the desired output to meet the Bluetooth 5.0 standard and the required regulatory specification.

There is no separate Bluetooth Low Energy Application Table. Typically, the Bluetooth Low Energy Performance Gain Table meets the Regulatory limits without any change. The Bluetooth Low Energy Performance Gain Table configuration displays in the following table.

However, in some cases of the chip-down design, a change to the DG gain value may be required to pass the regulatory specifications. In such a case, the user has to derive the Bluetooth Low Energy Application Gain Table by comparing each gain value for the given channel in the Bluetooth Low Energy Performance Gain Table and the Bluetooth Low Energy Certification Gain Table and choose the lower gain value for the selected channel.

Table 3-1. Recommended Bluetooth Low Energy Gain Table Configuration
Channel0123456789
BLE_Gain:-6.5-6.5-6.5-6.5-6.5-6.5-6.5-6.5-6.5-6.5
Channel10111213141516171819
BLE_Gain:-7-7-7-7-7-7-7-7-7-7
Channel20212223242526272829
BLE_Gain:-7-7-7-7-7-7-7-7-7-7
Channel30313133343536373839
BLE_Gain:-7-7-7-7-7-7-7-7-7-7
Channel0123456789
BLE_PA: 6666666666
Channel10111213141516171819
BLE_PA:6666666666
Channel20212223242526272829
BLE_PA:6666666666
Channel30313133343536373839
BLE_PA:6666666666
Channel0123456789
BLE_PPA:6666666666
Channel10111213141516171819
BLE_PPA:6666666666
Channel20212223242526272829
BLE_PPA:6666666666
Channel30313133343536373839
BLE_PPA:6666666666
Note: The DG value can be adjusted from -5 to lower values like -6, -7, -8 to achieve the required power levels.