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)

Block Diagrams 4-3

4-2-1 RF Transmit Part

a

b

c

de

U305

HD155128TF

Antenna

S/W

U304

U108

VP40575

TXEN

RAMPDAC

BAND Selection

- GSM : Low

- DCS : High

ITXP

ITXN

QTXP

QTXN

Loop

Filter

TX VCO

U200

Dual PAM

U312

APC Circuit

Coupler

153

1

3

7

5

U318

U318

8

8

13 7

2

540 MHz

PCN : 1575 ~ 1650 MHz (Tx)

GSM : 1150 ~ 1185 MHz

41411

1

2

34

5

38

35

20

191817

30

47

10

6

8

14

2

5

2

1

Ant. S/W

Control

Circuit

3VTX TXEN2

VC1 VC2 VC3

VC3VC2VC1

GSM(Tx)

DCS(Tx)

Rx

H

H

H

LL

LL

LL

11

SI4133-MLP28

U302

VCTCXO

13MHz

U303

IF VCO

1080MHz

PLL1

PLL2

RF VCO

AFCDAC

10

23

15

880 ~ 915MHz(EGSM)

890 ~ 915MHz(PGSM)

1710 ~ 1785MHz(DCS)

HD155128TF

U454

Antenna

S/W

U203

VP405575

U618

TXEN1

RAMPDAC

BAND Selection

- GSM : Low

- DCS : High

ITXP

ITXN

QTXP

QTXN

Loop

Filter

TX VCO

U200

Dual PAM

U476

TXEN1

BAND Selection

RAMPDAC

171819

20

38

35

30

47

23

11

153

7

10

6

8

1

5

4

17

2

5

3

1080 MHz

3VTX TXEN2

4,958

VC1 VC2

211

8

RF

Conector

(CN1)

10

1080 MHz

VCTCXO

(13MHz)

(U100)

PLL1

PLL2

SI4133-XM2

(U478)

RF VCO

IF VCO

APCIC

(U611)

Dual

Coupler

(U318)

VC2VC1

Tx(GSM)

Tx(DCS)

Rx

H

H

L

L

LL

Ant. S/W

Control

Circuit

3

2

DCS

1710 ~ 1785 MHz

(CH698 : 1747.4 MHz)

EGSM

880 ~ 915 MHz

(CH62 : 902.4 MHz)

53

8

GSM : 1150 ~ 1185 MHz

DCS : 1580 ~ 1655 MHz(Rx)

1575 ~ 1650 MHz(Tx)

1

2

3

4

5

4-4 Block Diagrams

4-2-2 RF Receive Part

Frequency = 947.067 MHz

Power = - 50 dBm

1st

Dual

SAW

Filter

F203

VP40575

U618

IRXP

IRXN

QRXP

QRXN

RXEN1

HD155128TF

U454

8

LNA

LNA

C212, L200

F200

IF SAW Filter

(225MHz)

Mixer 2

PGA

I & Q

Demod.

Mixer 1

Mixer 1

LC Filter

(45MHz)

1/4

3047

10

1

7

5

1

3

1

8

7

5

53,54

2,3

49,50

1,2

5,6

40,41

27

SDATA

SCLK

SYNEN1

EGSM : 1150 ~ 1185 MHz

DCS : 1580 ~ 1655 MHz

262524

32,33

4443

4

3

6

10

10

23

2nd

Dual

SAW

Filter

F204

RF

Conector

(CN1)

1080 MHz

VCTCXO

(13MHz)

(U100)

PLL1

PLL2

SI4133-XM2

(U478)

RF VCO

IF VCO

2

3

Antenna

S/W

U203

DCS Path

EGSM Path

- 50dBm

@ 947.067 MHz

- 50dBm

@ 1842.467 MHz

-51dBm

-32dBm -34dBm

-38dBm

-52dBm

-43dBm

-6dBm

@ 1172 MHz

-9dBm

@ 1617.4 MHz

-5dBm @ 1080 MHz

-25dBm (G)

-29dBm (D)

@ 224.933 MHz

-30dBm (G)

-35dBm (D)

-22dBm (G)

-25dBm (D)

@ 45.067 MHz

-50dBm (G)

-54dBm (D)

@ 67 kHz