TI中文支持网
TI专业的中文技术问题搜集分享网站

BOOSTXL-CC1120-90: The conduction output power of CC1120-CC1190 BoosterPack is much lower than the datasheet

Part Number:BOOSTXL-CC1120-90Other Parts Discussed in Thread:CC1190, CC1120

 I use RF Studio to measure the conduct RF power of the CC1120-CC1190 BoosterPack and find that the max conducted power is about 22 dBm, which is much lower 26 dBm which is stated in the datasheet. The test point is shown in the following figure, remove C40 and weld coaxial cable.

RF Studio is set as follows, with IOCXG0 register value of 0x73( CC1190 PA_EN).

Then I tested the output power of CC1120, with the following test point,remove B39921B3588U410 and weld coaxial cable. When the register PA_POWER_RAMP is set to 0x37, the measured power is -0.2 dBm. Could it be that the CC1120 chip on this board is broken? What is the theoretical output power of this testing point when PA_POWER_RAMP is set to 0x37?

Lydia:

您好,

已经收到了您的案例,调查需要些时间,感谢您的耐心等待。

,

Alice:

您好,

     请根据评估板原理图设置频段(868 MHz / 915 MHz)和PA_EN, LNA_EN, HGM。

     移除SAW filter,测试CC1120发射功率。

      PA_POWER_RAMP的设置发射功率只是理论计算,SmartRF Studio中给出的值是经过测量的。

      下面帖子讨论类似问题请参考

      CC1120: The minimum output power of CC1120 – Sub-1 GHz forum – Sub-1 GHz – TI E2E support forums

       BOOSTXL-CC1120-90: Not transmitting at correct power using smart RF – Sub-1 GHz forum – Sub-1 GHz – TI E2E support forums

      另外,也请在您另一个帖子内查看后续回复。

      BOOSTXL-CC1120-90: The conduction output power of CC1120-CC1190 BoosterPack is much lower than the datasheet – Sub-1 GHz forum – Sub-1 GHz – TI E2E support forums

赞(0)
未经允许不得转载:TI中文支持网 » BOOSTXL-CC1120-90: The conduction output power of CC1120-CC1190 BoosterPack is much lower than the datasheet
分享到: 更多 (0)

© 2025 TI中文支持网   网站地图 鲁ICP备2022002796号-1