Only For Training And Service Purposes - LG CU575 Service Manual

3. TECHNICAL BRIEF
3.12.3 HKADC(House Keeping ADC)
The MSM6260 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 MSM6260 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 No use
HKADC3 TTY_ADC_DET
HKADC4 PCB_Rev_ADC
HKADC5 VBATT_TEMP
LGE Internal Use Only
Figure. MSM6260HKADC Block diagram
Note
Battery voltage level
Ear jack Detection for TTY
PCB Version Check
Battery Temperature Check
Table. HKADC channel table
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Only for training and service purposes