
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.14.3 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.
3. TECHNICAL BRIEF
- 44 -
Figure. MSM6280HKADC Block diagram
Table. HKADC channel table
ADC Ch#
Signal Name
Note
HKADC0
AMUX_OUT
RF PAM Temperature Check
HKADC1
VBATT_SENSE
Battery voltage level
HKADC2
REF_ADC
ADC Reference voltage
HKADC3
TTY_ADC_DET
Ear jack Detection for TTY
HKADC4
PCB_Rev_ADC
PCB Version Check
HKADC5
Battery_THERM
Battery Temperature Check
Summary of Contents for CU405
Page 1: ...Date May 2007 Issue 1 0 Service Manual Model CU405 Service Manual CU405 Internal Use Only ...
Page 175: ...Note ...
Page 176: ...Note ...