![background image](http://html.mh-extra.com/html/samsung/sgh-x490/sgh-x490_service-manual_1191261022.webp)
SAMSUNG Proprietary-Contents may change without notice
Block Diagrams
This Document can not be used without Samsung's authorization
5-2
5-2. Base Band Solution Block Diagram
Battery
Type
Battery
Voltage
Battery
Temperature
AFC
RAMP
Charging Circuit
Li-Ion Battery
(Standard)
OM6359
VIBRATOR
SYSTEM CLOCK
(13MHz)
RTC_CLOCK
(32.768KHz)
KEY_BOARD
RECEIVER
MIC
LCD
RF INTERFACE
VCC_RX_TX
VCC_RF_VCO
VCC_TX_BURST
PMU
VCC_SYN
Serial Data
Interface
I/O
Interface
A/D
Interface
BB INTERFACE
MELODY IC
(40 Poly)
SPEAKER
VDD1
VDD2
VDD3
VDD_VIB
MIC_BIAS
VCC_CP
VDD_KEY
VDD_AMP
AVDD
AVDD_TEMP
SIM CARD
BL_VDD