Samsung SGH-R210 Block Diagram
4. Block Diagrams
4-1 Main Baseband
Block Diagrams 4-1
Battery
Type
Battery
Voltage
Battery
Temperature
3VTX
XVCC
RTC_3V3
Serial Data
Interface
I/O
Interface
A/D
Interface
AGC,AFC
PLL
LOAD
SWITCH
Charging
Circuit
Li-Ion Battery
(Standard)
ONE C
VIBRATOR
SYSTEM CLOCK
(13MHz)
SRAM
FLASH
EEPROM
RTC_CLOCK
(32.768KHz)
KEYPAD
SIM CARD
SPEAKER
MIC
LCD
BB INTERFACE
RF INTERFACE
ALERT_VCC
AVCC
VCC
3VRF
4-2 Block Diagrams
4-2 Main RF
Antenna
S/W
(U203)
Bias
Circuit
APCIC
(U611)
LNA
2nd
Dual
SAW
Filter
Mixer 1
Mixer 2
IF
SAW
Filter
225 MHz
LC
Filter
45 MHz
PGA
I&Q
Demod.
IRXP
IRXN
QRXP
QRXN
SYNTHDATA
SYNTHCLOCK
AGCLE
RXEN1
RXEN2
TXEN
ITXP
ITXN
QTXP
QTXN
EGSM
925~960 MHz
(CH62 : 947.4 MHz)
DCS
1805~1880 MHz
(CH698 : 1842.4 MHz)
1080 MHz
DCS : 270 MHz
EGSM : 540 MHz
I&Q
Mod.
45 MHz
270 MHz
EGSM : 270 MHz
DCS : 135 MHz
Phase
Detector
TX VCO
(U200)
EGSM
880 ~ 915 MHz
(CH62 : 902.4 MHz)
DCS
1710 ~ 1785 MHz
(CH698 : 1747.4 MHz)
F204
HD155128TF
(U454)
F200
C212
L200
VP40575
(U618)
1st
Dual SAW
Filter
F203
LNA
Serial data
Interface
Loop
Filter
Dual
Coupler
(U318)
Dual PAM
(U476)
VCTCXO
(13MHz)
(U100)
PLL1
PLL2
SI4133-XM2
(U478)
RF VCO
IF VCO
1/2
1/2
90 deg
Shift
1/2
1/6
90 deg
Shift
1/2
EGSM : 270 MHz
DCS : 135 MHz
EGSM : 1150 ~ 1185 MHz
DCS : 1580 ~ 1655 MHz(Rx)
1575 ~ 1650 MHz(Tx)
RF
Conector
(CN1)
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