BC660K-GL: Module does not enter sleep mode when set AT+QSCLK=1

Hi every one,
After i commant AT+QSCLK=1 in standalone modules BC660K-GL, module does not hold a sleep mode. Specifically:
[2022-03-11_12:53:05:495]AT+QSCLK=1
[2022-03-11_12:53:05:495]OK
[2022-03-11_12:53:25:719]
[2022-03-11_12:53:25:719]+QNBIOTEVENT: “ENTER DEEPSLEEP”
[2022-03-11_12:53:26:077]
[2022-03-11_12:53:26:077]+QNBIOTEVENT: “EXIT DEEPSLEEP”
[2022-03-11_12:53:35:778]
[2022-03-11_12:53:35:778]+QNBIOTEVENT: “ENTER DEEPSLEEP”
[2022-03-11_12:53:36:138]
[2022-03-11_12:53:36:138]+QNBIOTEVENT: “EXIT DEEPSLEEP”
[2022-03-11_12:53:45:836]
[2022-03-11_12:53:45:836]+QNBIOTEVENT: “ENTER DEEPSLEEP”
[2022-03-11_12:53:46:197]
[2022-03-11_12:53:46:197]+QNBIOTEVENT: “EXIT DEEPSLEEP”
[2022-03-11_12:54:16:013]
[2022-03-11_12:54:16:013]+QNBIOTEVENT: “ENTER DEEPSLEEP”
[2022-03-11_12:54:16:248]
[2022-03-11_12:54:16:248]+QNBIOTEVENT: “EXIT DEEPSLEEP”

And module the module is constantly doing so.
I don’t know where the fault is? hardware or software? Hope everybody help please!

Please disconnect all peripherals of the module. You can test the PSM status of the module separately. According to the output logs, the AP of the module wakes up abnormally due to the power supply or peripheral devices