Only For Training And Service Purposes - LG U370 Service Manual

3. TECHNICAL BRIEF
3.10.3 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
HKADC0
HKADC1
HKADC2
HKADC3
HKADC4
HKADC5
LGE Internal Use Only
Figure. MSM6245 HKADC Block diagram
Signal
AMUX_OUT RF PAM Temperature Check
VBATT_SENSE Battery voltage level
REF_ADC ADC Reference voltage
TTY_ADC_DET Ear jack Detection for TTY
PCB_Rev_ADC PCB Version Check
Battery_THERM Battery Temperature Check
Table. HKADC channel table
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Note
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Only for training and service purposes