LG L705ix Service Manual page 47

3. TECHNICAL BRIEF
3.11.3 HKADC(House Keeping ADC)
The MSM6280 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 MSM6280 device has six analog input pins which are multiplexed to the input of the
internal HKADC.
Channel Signal
HKADC0 PM_ADC
HKADC1 VBATT_SENSE
HKADC2
HKADC3
HKADC4 PCB_Rev_ADC
HKADC5 VBATT_TEMP
LGE Internal Use Only
Figure.3.11.5 MSM6280HKADC Block diagram
Note
PMIC ADC Input
Battery voltage level detect
PCB Version Check
Battery Temperature Check
Table.3.11.5 HKADC channel table
- 48 -
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes