LG U250 Service Manual page 55

3. TECHNICAL BRIEF
3.11.3 HKADC(House Keeping ADC)
The MSM6245 device has an on-chip 8-bit analog-to-digital converter (HKADC) which is tended to
digitize DC signals corresponding to analog parameters such as battery voltage, temperature, and RF
power levels. The MSM6245 device has six analog input pins which are multiplexed to the input of the
internal HKADC.
Channel Signal
HKADC0 AMUX_OUT
HKADC1 VBATT_SENSE
HKADC2 NC
HKADC3 NC
HKADC4 PCB_Rev_ADC
HKADC5 Battery_THERM
Figure 1.18 MSM6245 HKADC Block diagram
Table. HKADC channel table
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Note
RF PAM Temperature Check
Battery voltage level
NC
NC
PCB Version Check
Battery Temperature Check