Product Info

Table Of Contents

RTL8822CE RTL8822CU RTL8822CS COB TSSI MP FLOW

Efuse notification: Default Tx setting of efuse map release by RTK is set to 5 dBm which the setting is shown below as Fig A.

If customer need to adopt other Tx target power for their own product please following the power table listed in

“7.4.Bluetooth Tx power table” and revise the efuse map by themselves. For example 4 dBm setting is shown in Fig B. This

efuse map file need to burn in DUT after passing through Tx calibration flow. Please note that Max Tx power variation

could achieve +- 2 dB due to PCB or component variation even after calibration. Therefore we suggest customer take +- 2dB

margin during changing Tx value of efuse map file. For example, if the Max power of the product could not exceed 6 dBm

then Tx value for 4 dBm (Fig. 11) is a better choice.

Figure 10: BT_5 dBm setting example (Capture image from efuse map file) RTK default map

Figure 11: BT_4 dBm setting example (Capture image from efuse map file)