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3. TECHNICAL BRIEF
3.4.4 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.
<Table.5> ADC Channel Spec
3.4.5 Switch ON/OFF
GD330 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.
3.4.6 Memories
- 1G Mbit NAND Flash + 512Mbit SD RAM
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