According to “AirPrime_HL8548_and_HL8548_G_Product_Technical_Specification_Rev7_1.pdf” at page 30, current consumption in Sleep mode(WCDMA) is 1.4mA.
I measured HL8548 current consumption in Sleep mode(registered to the WCDMA network) using HL Series Development Kit.
But current consumption I measured is aproxmatelly 26mA.
As it includes LED current consumption in Development Kit, HL8548 module cosumes 13mA.
I think It is too large comapering to HL8548 specification(1.4mA).
- remove CN405.
- setup LABO connector setting.
- inject power supply (I beleive HL8548 goes to register WCDMA network and goes to sleep mode automatically.)
- measure electric current at power supply by current probe.
Is there any mistake in my procedure?