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AT73C202
Application Schematic
Figure 2. AT73202 Application Schematic
T001
Charging
Device
D3
GATE-CH
VBATTERY
Protection
Circuit
D2
CHG-IN
VBAT
E1
C016
C3
C1
CHG
FLASH-LED
Charger
Controller
LED-OUT
D1
C2
R001
Battery
Pack
F5
BAT-VOLT
D-GND
to Logic Reset
V-BCK
VBATTERY
E5
D4
G6
G5
B5
D5
C6
D6
AA-GND
BB1
VIN-REG1
ECO-MODE
EN-ANA-B
ON-OFF
UP-ON-OFF
DC-ON
EN
EN
Reset
Generator
DC-DC
Converter
1.8V/2.5V
300mA
I/O PAD LDO
2.8V/130mA
Analog LDO
RES-B
LX
V-CORE
GND-REG1
V-PAD
A-VCC
F6
F7
G4
G7
B6
B4
R002
L001
C002
Input
VPAD
LOGIC
Core
Supply
LOGIC
Periphery
Supply
ANALOG
Supply
EN
2.7V/2.8V/130mA
A-GND
A7
A5
VIN-REG2
V-BCK
A6
R003
Backup
Battery
BAT-RTC
2.4V/2.7V/2mA
C013
C7
CREF
VIN>2.6V
VREF
EN
RTC LDO
VCC-RTC
1.5V/0.5mA
V-RTC
B7
RTC
Supply
VBATTERY
A3
B2
VIN-RF
EN-RF1
RF1 LDO
2.8V/130mA
V-RF1
B1
RF1
Supply
RF2 LDO
V-RF2
A1
RF2
Supply
C4
D7
EN-RF2
VIN-VIB
2.8V/130mA
GND-RF
V-VIB
A2
E7
VIBRATOR LDO
E6
EN-VIB
2.8V/130mA
BUZ-OUT
B3
VIB
C5
BUZ-IN
VCORE or
VPAD
G1
G3
F4
D-VCC
SIM-EN
SIM-1V8/2V8
SIM LDO
1.8V/2.8V/10mA
BUZ-GND
SIM-VCC
A4
E3
32 Ohm
BUZZER
VBATTERY
SIM-VCC
E4
RESET-IN
SIM-RST
F1
F3
G2
CLK-IN
DATA-IO
SIM Level Shifter
and
Regulator 1.8V/2.8V
SIM-CLK
SIM-IO
F2
E2
5
2740B–PMGMT–05/03
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