Samsung SGH-T400 Schematics

+VBATT

U300

23

VIN

VOUT

1

C300

C311
100UF

C301

10NF

100PF

CE4GND

RQ5RW28B

C302

C303
10NF

4.7uF

D300
MCL4154

R300

1K

C305

RB414

RTC_2V8

RTC_VCC

C304
100NF

LVCC

POWER

H102H101

H103

PCB FIXING HOLES(1.9)

C306

4.7uF

U301

1

12

IN1

OUT1

2

3

IN2

OUT2

10

9

IN3

C310

C312

1UF

H104

C497

4.7UF

9PF

C313
10NF

7

BP

4

EN1

5

EN2

6

EN3

MAX8890ETCABK-T

OUT3

8

GND

11

GND

13

GND

C308

4.7uF

C314

4.7UF

C307
10NF

VDD3.0

C309
10NF

DVCC2.5

C498

9PF

AVCC2.5
C315
10NF

+VBATT

Title

POWER Management Schematic

Size

Document Number

SAMSUNG/T400/B.B/PSU

A3

Date: Sheet

Monday, Nov, 11, 2002

1 of 10

Rev

Rev 3.2

LVCC

Q300
DTC114YE

RI_RED

2

3

1

D301
HL500-F01-SS

23

R310
300

1

4

R311

R312

68

150

+VBATT

SLS-NNWH102TS

R303

R302

R301

75

75

D304

D303

R304

75

75

D305

D306

R306

R305
75

D307

R307

75

75

D309

D308

R309

R308

75

75

D311

D310

RI_BLUE

RI_GREEN

CN4-1

1004-0018-319

18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2

1
19
20
21
22
23

24

2

31

5

4

6

Q301

UMH9N-TN

R319

0

VC040205X150R

1

2SD2114KT146V

V302

VC060314A300R

V303
VC040205X150R

D313

ESDA6V1W5

3

2

Q302

JT7

+VBATT
VF

L302

BLM21P300SPT

EXB28V101JX

7
8

5

4

EXB28V101JX

7
8

JT8

JT9

100R315
100

R316

100

R317

R324

3456
2
1

JT14

R320

JT10

3456
2
1

JT12

DCVOLT

SPK2P
SPK2N

SIMPWDN_BOOT

MIC2N
MIC2P

SDA

JT15

JT11

JT13

SCL

RS232_CTS
RS232_RTS
RS232_RXD
RS232_TXD

Title

IFCONNECTOR & LIGHT Schematic

Size

Document Number

SAMSUNG/T400/B.B/IFCONNECTOR & BL

A3

Date:

Monday, Nov, 11, 2002

Sheet

2 of 10

Rev

Rev 3.2

R313
1K

KEY_BL

C316

100NF

VDD3.0

V304

V301
VC040205X150R

C317
100NF

R314
100K

1

2

3