3. TECHNICAL BRIEF

3.11.3 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.

Figure 1.18 MSM6245 HKADC Block diagram

Channel

Signal

Note

 

 

 

HKADC0

AMUX_OUT

RF PAM Temperature Check

 

 

 

HKADC1

VBATT_SENSE

Battery voltage level

 

 

 

HKADC2

NC

NC

 

 

 

HKADC3

NC

NC

 

 

 

HKADC4

PCB_Rev_ADC

PCB Version Check

 

 

 

HKADC5

Battery_THERM

Battery Temperature Check

 

 

 

Table. HKADC channel table

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LG Electronics U250 service manual HKADCHouse Keeping ADC, Table. Hkadc channel table
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U250 specifications

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