CC2340R5: why these current peaks between the advertising interval i.e. 1s

akash soni

Part Number: CC2340R5

Tool/software:

I am using CC2340R5 Basic BLE example in which i am trying to achieve the low power consumption according to the folowing :https://dev.ti.com/tirex4-desktop/nodeContent?node=A__AORV2P9xKyaQCr.Dunw8Rg__com.ti.SIMPLELINK_LOWPOWER_F3_SDK__58mgN04__LATEST . There are some current peaks appearing regularly between the advertising interval time i.e set to 1s in Basic BLE example.

I am trying to achieve this on my custom board of CC2340R5,where i am using the internal oscillator for low frequency setting.

What should i do to remove these current peaks????

Hoping for a positive response.

Thank You

over 1 year ago

0 David over 1 year ago

TI__Genius 15535 points

Hello Akash,

Thanks for reaching out.

These "spikes" seem to be recharge pulses. You can take a look at the following application note for more information about it: How to Do RF Radio Test With Your Bluetooth Product. In addition, to confirm these are recharge pulses as well, you should be able to measure less than 1 uA in between advertisements, which is the standby current.

BR,

David.

Bluetooth®︎

Bluetooth forum

CC2340R5: why these current peaks between the advertising interval i.e. 1s