LG HB620 Service Manual

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3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.10.3 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.
[Fig. 3.21] MSM6280HKADC Block diagram
[Table 3.10] HKADC channel table
Channel Signal Note
HKADC0 AMUX_OUT RF PAM Temperature Check
HKADC1 VBATT_SENSE Battery voltage level
HKADC2 EAR_MIC_P Ear jack Detection
HKADC3 RNT_ADC Headset remote key detection
HKADC4 PCB_Rev_ADC PCB Version Check
HKADC5 Battery_THERM Battery Temperature Check
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English