LG P7200 - Page 32

3. TECHNICAL BRIEF
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3.5.3 Auxiliary Section
1. This section includes an Automatic Frequency Control(AFC) DAC, voltage reference buffers, an
Auxiliary ADC, and light controllers.
• AFC DAC: 13 bits
2. This section also contains AUX ADC and Voltage Reference
• IDAC: 10 bits
• The Auxiliary ADC provides :
- Two differential inputs for temperature sensing.
- A differential input for the battery charger current sensor
AD6535
Control
Serial
Port
CSFS
CSDI
CSDO
AFC
DAC
AIN1P
AIN2P
REFTXCM
REFOUT
REFCHG
AFCDAC
REF
AUXADC1
AUXADC2
BATTYPE
VBATSENSE
ISENSE
REFBB
Aux
ADC
TEMP1
TEMP2
LIGHT1
LIGHT2
LIGHT3
Light
Controllers
Voltage
Reference
Figure 3-11. AD6535 AUXILIARY SECTION