LG C1100 Service Manual page 32

AD6537B
CSFS
Control
CSDI
Serial
Port
CSDO
ADC
INT
Interrupt
Logic
Figure 3-18. AD6537B BATTERY CHARGING BLOCK
B10
AUXADC1
A9
AUXADC2
HOOK_DET
P15
AIN2P
C151 0.1u
R15
AIN2N
P16
AIN1P
R16
C154
AIN1N
R13
AIN3L
39p
R14
C177 C152 C153
AIN3R
C178
39p
39p 39p
39p
R12
C156
NC_R12
39p
VBAT
L16
LIGHT1 RLED
R149
M15
LIGHT2 GLED
M16 NA
LIGHT3
R10 C157
SPWR1
T10
1u
SPWR2
T9
AOUT2N1 SPKN
R9
AOUT2N2
R11
AOUT2P1 SPKP
T11
AOUT2P2
K16
AOUT3N
J16
AOUT3P
J15
AOUT1P RECP
K15
AOUT1N RECN
C188
0.1u
C196
39p
R150
JACK_DET
OUT
100
C170
C171
100p 100p
Trouble
Charge
Charge
Timer
Chg.
DAC
Aux
CLOSE TO AD6537
R124
0
R130
C155
4.7K
39p
R148
100
C139 4.7u
VEXT
R138
VEXT
2.2K
5
4 VIN-
R145 1M
1 VCC
R144 1M
3 VIN+
GND
2
U104
R147 330K
MAX9075EXK-T
Figure 3-19. C1100 AUDIO CIRCUIT
- 31 -
3. TECHNICAL BRIEF
VCHG
GATEDRIVE
ISENSE
VBATSENSE
VBATx
BATTYPE
R
TRIF
REFOHG
AGND1
R128
100
C163
39p
C161 C162
C160
R132
39p 39p
100
0.1u
R134 2.2K
VMEM VMIC
VMEM
U105
VMEM
R156 100K
GND
2 3
VCC
IN
1
C123
39p
R158
NA
MAX4599EXT-T
R137 1K
CLOSE TO EARJACK
R141
4.7
C165
TC153 C179
39p
10u 39p
VCHARGER
R
GATE
R
SENSE
3-Terminal
Battery Pack
R
TEMP
thermistor
VMIC
R126 1K
TC151
C193
R127
2.2K
39p
10u
MIC101
CLOSE TO MIC
2
1
OB4-15L42-C33L
VA151 VA152
VMIC_ON
R159
HOOK_DET
1K C124
R153 R154
0.1u
39K NA
J102
2
4
3
R181 4.7
1
5
VA153
VA154
C168 HEADSET JACK
C167
39p 18p
SP114 SP115