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Block Diagrams
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7-2
7-2. Base Band Solution Block Diagram
MEMORY
UME200
(64NOR X 32SRAM)
UCP200
(ARM 9@ 156MHZ)
EGSMRX_P
EGSMRX_N
DCSRX_P
DCSRX_P
FEM+PAM
PAM100
B9308
(RX SAW Filter)
DCSRX
EGSMRX
MOD_STANDBY
PAMP
PON_PA
BAND_SEL
VGPIO
KEY(21 KEY)
KEYIN(2:0)
KEYOUT(3:0)
KEYIO(2:0)
EXT CONN.
VCHG
U300
(OVP
IC)
VCHG_P
VBAT
JACK
(BAT)
Charging
VF
TR300
(Dual
FET)
VCH
G_P
ICHGP
ICHGN
CHG_SW
CHG_REG
POWER KEY
ONKEY_2
ONKEY_1
HWR_N, HRD_N,
LB, UB
MD(0:15)
A(2), A(13:15),
A(17:22)
NCSFLASH
NCSRAM
MAIN CSTN LCD
U301
(LCD Charge Pump)
LED_EN
LED_K1
LED_K2
A(20) <RS>
HWR_N <WR>
NCS0 <CS>
MD(0:15)
IFC500
(IF Connector)
SIM_CLK
SIM_RST
SIM_DATA
MAIN MIC
MIC_P/N
EXT CONN.
EAR_MIC_P/N
SPEAKER
U400
(AMP)
RCV_P/N
AMP_EN
SPK_P/N
EXT CONN.
U500
(Analog
Switch)
UART1_CTS
UART1_RTS
EAR_SW
EARN_RTS
EARP_CTS