3. TECHNICAL BRIEF
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Power on sequence
If a battery is inserted, the battery powers the 6 LDOs.
Then if PWRONKEY is detected, the LDOs output turn on.
REFOUT is also enabled, Reset signal is generated and send to the AD6525.
LDO block
There are 6 LDOs in the ADP3522.
Charging Process
1. Check charger is inserted or not.
2. If ADP3522 detects that Charger is inserted, the CC-CV charging starts.
3. Exception: When battery voltage is lower than 3.2V, the trickle charge (low current charge
mode) starts firstly. After the battery voltage reaches to 3.2V, the CC-CV
charging starts.
Battery charging block
It can be used to charge Lithium Ion and/or Nickel Metal Hydride batteries. The phones use Li-
Ion battery only. Charger initialization, trickle charging, and constant current charging are imple-
mented in hardware.
Pins used for charging
CHGDET : Interrupt to AD6525 when charger is plugged.
CHG_EN : Control signal from AD6525 to charge battery.
EOC : Interrupt to AD6525 when battery is fully charged.
GATE_EN : Control signal from AD6525 to charge NiMH battery. But, not used.
TA (Travel Adaptor)
Input voltage : AC 110V ~ 240V, 50~60Hz
Output voltage : DC 5.2V(+_ 0.2 V)
Output current : Max 800mA
Battery
Li-ion battery : Max 4.2V, Nom 3.7V
Standard battery : Capacity - 950mAh, Li-ion
Summary of Contents for G1610
Page 1: ...Service Manual Model G1610 Service Manual G1610 P N MMBD0045701 Date February 2005 Issue 1 0 ...
Page 52: ...4 TROUBLE SHOOTING 51 Graph 4 14DCS TX Graph 4 15EGSM TX VC1 VC2 VC1 VC2 VC1 VC2 VC1 VC2 ...
Page 70: ...5 DISASSEMBLY INSTRUCTION 69 5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 ...
Page 71: ...5 DISASSEMBLY INSTRUCTION 70 Figure 5 3 Figure 5 4 ...
Page 72: ...5 DISASSEMBLY INSTRUCTION 71 Figure 5 5 ...
Page 73: ...5 DISASSEMBLY INSTRUCTION 72 Figure 5 6 1 3 2 4 Figure 5 7 1 2 3 ...
Page 74: ...5 DISASSEMBLY INSTRUCTION 73 Figure 5 8 4 2 3 1 2 1 Figure 5 9 ...
Page 75: ...5 DISASSEMBLY INSTRUCTION 74 Figure 5 10 ...
Page 86: ...7 BLOCK DIAGRAM 85 7 BLOCK DIAGRAM Power supply ...
Page 87: ... 86 ...
Page 108: ...12 AUTO CALIBRATION 107 12 3 Equipment Setup Figure 12 1 Equipment Setup ...
Page 111: ...12 AUTO CALIBRATION 110 ...