Samsung SGH-X620 Service Manual page 24

Block Diagrams
5-2. Base Band Solution Block Diagram
VDD1
VDD2
VDD3
VDD_KEY
VIBVDD
PCF50601
MIC_BIAS
AVDD_TEMP
VCC_CP
VCC_SYN
VCC_RX_TX
VCC_RF_VCO
VCC_TX_BURST
LDO
(Memory power)
Li-Ion Battery
LDO2
(MV3018 power)
DUAL LDO
(Camera power)
SGH-X620 Block Diagram
SCL
SDA
IT_PMU
REF_ON
32K
CAT32
(LED DRIVER)
(PMU)
SIM CARD
MOTOR
RTC_CLOCK
(32.768Khz)
ISL6294
(CHARGER IC)
(Standard)
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Loud SPK
(Melody IC)
OM6359 LINE_OUT
(Baseband chip)
HD(0:15)
HA(1:2)
INTEL MEMORY
NOR FLASH
128Mbit
SDRAM
64Mbit
5-2
EAR_N
SWITCH
EAR_P
(STG3699)
YMU 762
FM Radio
LM4845
AMP_P
D class AMP
AMP_N
MIC_P
MIC_N
EAR_MIC_N
EAR_MIC_P
LCD_CS
MV3018
RS
(camera
L_RD
L_WR
chip)
LD(0:15)
VGA
CAMERA
TFT LCD
1.66"