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3. TECHNICAL BRIEF
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
implemented 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 (±0.2V)
Output current
: Max 800mA
Battery
Li-ion battery
: Max 4.2V, Nom 3.7V
Standard battery
: Capacity - 950mAh, Li-ion
Summary of Contents for C3100
Page 1: ...Service Manual Model C3100 Service Manual C3100 P N MMBD0033001 Date June 2004 Issue 1 0 ...
Page 51: ...Graph 4 15 EGSM TX 50 VCX VC2 VCX VC2 4 TROUBLE SHOOTING Graph 4 14 DCS TX ...
Page 67: ...5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 66 5 DISASSEMBLY INSTRUCTION ...
Page 68: ... 67 5 DISASSEMBLY INSTRUCTION Figure 5 3 Figure 5 4 ...
Page 69: ... 68 Figure 5 5 5 DISASSEMBLY INSTRUCTION ...
Page 70: ... 69 5 DISASSEMBLY INSTRUCTION Figure 5 6 Figure 5 7 1 3 2 4 1 2 3 ...
Page 71: ... 70 Figure 5 8 Figure 5 9 5 DISASSEMBLY INSTRUCTION 4 2 3 1 2 1 ...
Page 72: ... 71 5 DISASSEMBLY INSTRUCTION Figure 5 10 ...
Page 83: ... 82 7 BLOCK DIAGRAM 7 BLOCK DIAGRAM Power supply ...
Page 90: ... 89 9 PCB LAYOUT 9 PCB LAYOUT ...
Page 91: ... 90 9 PCB LAYOUT ...
Page 98: ... 97 11 3 HW Test Software for Standalone Test Setup 11 STAND ALONE TEST ...
Page 100: ... 99 Tx Stand alone Test Setting 11 STAND ALONE TEST ...
Page 102: ... 101 Rx Stand alone Test Setting 11 STAND ALONE TEST ...
Page 104: ... 103 12 3 Equipment Setup Figure 12 1 Equipment Setup 12 AUTO CALIBRATION ...
Page 107: ... 106 12 AUTO CALIBRATION ...
Page 109: ... 108 13 EXPLODED VIEW REPLACEMENT PART LIST ...