Samsung SGH-R200 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

ONE C

VIBRATOR

SYSTEM CLOCK

(13MHz)

SRAM

FLASH

EEPROM

RTC_CLOCK

(32.768KHz)

KEYPAD

SIM CARD

SPEAKER

MIC

LCD

BB INTERFACE

RF INTERFACE

AVCC

SIMVCC

ALERT_VCC

3VRF

VCC

Base Band Block Diagram of SGH-R200

4-2 Block Diagrams

4-2 Main RF

IF SAW

Filter

(225MHz)

LC

Filter

(45MHz)

Dual Power AMP Module

SI4133G-XM2

VCTCXO

13MHz

HD155128TF

IF VCO

1080MHz

925~960MHz

Ant. S/W

VC1(GSM)

VC2(DCS)

LPF LPF

Dip.

TX

Rx Dual

SAW

filter

1805~1880MHz

Rx

Dual

SAW

filter

LNA

LNA

PLL1

PLL2

PGA

90 °

Shift

÷ 2

90MHz

÷ 6

90 °

Shift

÷ 2

DCS : 270MHz

GSM : 540MHz

I&Q

Mod.

GSM : 270MHz

DCS : 135MHz

Phase

Detector

Loop

filter

GSM : 270MHz

DCS : 135MHz

Baseband

Block

880 ~ 915MHz

1710 ~ 1785 MHz

Tx Dual

VCO

APCIC

Mixer 2

Serial data

interface

45MHz

270MHz

÷ 2

GSM : 1150~1185MHz

DCS : 1580~1655MHz

I

-I

Q

-Q

I&Q Demo.

I

-I

Q

-Q

CLK

SDATA

LE

bias circuit

Mixer 1

RF VCO

÷ 2

540MHz

Dual Directional

Coupler

GSM : 1150~1185MHz

DCS : 1575~1650MHz

(CH 62 : 947.4MHz)

(CH 698 : 1842.4MHz)

(CH 62 : 902.4MHz)

(CH 698 : 1747.4MHz)

CH 62 : 1172.4MHz

CH 698 : 1617.4MHz

RF Block Diagram of SGH-R200