LG KM710 Service Manual page 34

3.5.4 Monitoring ADC
The monitoring ADC (MADC) consists of a 10-bit analog-to-digital converter (ADC) combined with an
11- input analog multiplexer. The ADC implementation consists of a successive approximation
conversion.
Five of the eleven inputs are available externally (ADIN1..5), and the remaining six inputs are
dedicated to die temperature measurement, main battery voltage, backup battery voltage, charger
voltage, charger current monitoring and USB Vbus voltage. Three external inputs (ADIN1..3) are
standard inputs. The two others (ADIN4..5) which are associated with current sources, are intended
for battery temperature and battery type measurements.
Interface Pin P in No
PWON L10
RPWON H7
PCLKREQ M12 BT_CLK_REQ
ADC1 D5
ADC2 B4
ADC3 A4
ADC4 C5
ADC5 B5
VBACKUP H8
SIM_DTC J7
VIBDR M10 VIBRATOR
LED_A C12
LED_B B12
LED_C A12 N.C
3.5.5 Switch ON/OFF
KM710c Power State: Defined 4cases as follow
- Power-ON: mobile is powered by main battery or backup battery.
- Power-OFF: mobile isn't any battery.
- Switch-ON: mobile is powered and waken up from switch-off state.
- Switch-OFF: mobile is powered to maintain only the permanent function(ULPD).
To enter into Switch-ON state, one of following 4 condition is satisfied.
- PWR-ON pushed after a debouncing time of 30ms.
- ON_REMOTE: After debouncing, when a falling edgeis detected on RPWON pin.
- IT_WAKE_UP: When a rising edge is detected on RTC_ALARM pin.
- CHARGER_IC:When a charger voltage is above VBAT+0.4V on VCHG.
3.5.6 Memories
- 1G Mbit NAND Flash + 512Mbit DDR RAM
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NET Name I/ O
PWON I
RPWON I
I
TEMP_SENSE I
JACK_TYPE I
LCD_ID I
REMOTE_ADC I
BATT_INSERT I
VBACKUP O
REMOTE_INT I
O
LED_MAINKEY O
-
<Table.5> ADC Channel Spec
3. HW Circuit Description
Commen t
Power On Key
Remot e power on key
BT clock request
RF block temper ature
Jack type deteect
LCD ID detect
Remmoco n ADC value indicate
Pull down, battery insert input(USB)
backup battery
Remote c ontrol Interrupt Input
Vibrator
Main key LED
N.C
- 35 -
LGE Internal Use Only