Chapter 4. Diagrams; Block Diagram - Sharp GX10i Service Manual

GX10i

CHAPTER 4. DIAGRAMS

[1] Block diagram

[Main]
IRXP
IRXN
QRXP
QRXN
V-ANA
GPO_3
VOUTNOR*
EP100
EARPIECE
MIC100
MICROPHONE
JK301
HANDS FREE
CONNECTOR
A
(out of use)
(out of use)
6
10 2 15 4 11
CN302
EXTERNAL CONNECTOR
CONFIDENTIAL
V-ANA
ITXP RAMPDAC
V-CORE
ITXN AFCDAC
V-MEM
QTXP
QTXN
IC102 AD6521ACA
ANALOG BASEBAND
Filter
Filter
RAMP
Filter
DAC
I Receive
ADC
Q Receive
ADC
PGA Filter
VINAUXP
PGA
ADC
AFC
DAC
AUXADC[1:6]
IDAC
AUX
ADC
Voltage
Reference
GPO_3
Battery
Voltage
Divider
SIM
V-SIM
LDO
DIGITAL
V-CORE
Core LDO
ANALOG
V-ANA
LDO
TCXO
VT
LDO
MEMORY
V-MEM
LDO
RTC
LDO
REF
BUFFER
ROWX
KEYPADROW[4:0]
KEYPADCOL[4:0]
V-EXT_CN
(2.5V)
KEYPAD:5X5
IC306
XC6204B392MR
REG15 for
LODER
16
7 14 13 12 5
1 3
Figure 1 MAIN BLOCK DIAGRAM (1/2)
RF I/F
CLKON,GPO_1(TXON)
GPO_2(BS2),GPO_9(RFON)
GPO_16(BS0),GPO_17(BS1)
I Transmit
DAC
GSMK
Q Transmit MOD
DAC
Baseband
Power
Serial
Ranping RAM
Port
Filter
Filter
DAC Filter
Voiceband
Serial
Port
Filter
Auxiliary
Control Serial
Registers
Port
IC202 ADP3408ACP
POWER
SUPPLY
PWRONOIN
Power-UP
Sequencing
And
GATEIN
Protection
High(V-MEM)
Logic
Battery
Charge
Controller
BATSNS
GATEDR
ISENSE
PWRONKEY
CHRIN
SIMDATAOP
V-SIM
SIMCLK
GPIO_23(RESET)
POWER-UP
KEY
CN301
SIM CARD
GPO_4
CONNECTOR
3V 0NLY
KEYPAD
BACK LIGHT
D304
Q305
From AC/DC CHAGER
8
9
4 – 1
CLKIN
GPO_18(SYNTHEN)
(13MHz)
GPO_20(SYNTHDATA)
GPO_21(SYNTHCLK)
IC104 AD6526XCA
DIGITAL BASEBAND
BSDO,BSOFS
BSDI,BSIFS
GPO_0 (RXON)
GPO_1 (TXON)
GPO_5 (ARSM)
GPO_6 (ATSM)
VSDO,VSFS
VSDI
ASDO,ASFS
ASDI
GPO_24(RESET)
CLKOUT_GATE
BOOT
ROM
CLKOUT (13MHz)
BATT+
PWRON
CLKON,GPIO_24(SIMEN)
nRESET
GPO_7(CHGEN)
GPIO_22(EOC)
GPIO_13(CHRDET)
External
Circuit For
Charging
GPIO_4
FLIP KEY
Q306
IC305
Q307
R3111Q251C
VOLTAGE
2.5V DET
DETECTOR
BATT+
REG10
IC302
Li-Ion
XC6209B302MR
BATTERY HIGH SPEED LDO
REGULATOR
720mAh
BAT100
BACK-UP
BATTERY
V-SIM
V-CO
V-ME
V-INT
BSPORT
VSPORT
Ciph
Cop
HSL/
Trace
Vite
Cop
MCU Su
SBUS
C
MCU
&
ARM7TDMI
B
39MHz
MMI HO
GPIO
DISPLAY
G
RTC
IR
KEYPAD
BMC
SIM
USC
UART
V-MEM 2
VRTC 1.8V
REG14
IC203
RQ5RW1
VBACK 3