Samsung SGH-S7120U, GT-S7120U Product Specification
Specification
2.
2-1.
General CH and Freq. Table
EGSM 900 DCS1800 PCS1900
Freq.
Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing 45MHz 95MHz 80MHz 400MHz
Mod. Bit rate/
Bit Period
Time Slot
Period/Frame
Period
880~915
925~960
0~124 &
975~1023
270.833kbps
3.692us
576.9us
4.615ms
1710~1785
1805~1880
512~885 512~810
270.833kbps
3.692us
576.9us
4.615ms
1850~1910
1930~1990
270.833kbps
3.692us
576.9us
4.615ms
W-CDMA
AWS
1712~1753
2112~2168
UL:1312~1513
DL:1537~1738
3.84Mcps
Frame length :
10ms
Slot length :
0.667ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm 24dBm ~ - 50dBm
Power Class
Sensitivity -102dBm - 100dBm -100dBm -106.7dBm
TDMA Mux 8 8 8
Cell Radius 35Km 2Km 2Km 2Km
max
(
4
+33
dBm)
max
(
1
+30
dBm)
max
(
1
+30
dBm)
HQPSK
max
(
QPSK
3
+24
dBm)
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Specification
2-2.
GSM General Specification
TX Power
control level
533±2
631±2
729±2
827±2
925±2
10 23±2
GSM900
dBm
dBm
dBm
dBm
dBm
dBm
TX Power
control level
030±3
128±3
226±3
324±3
422±3
520±3
DCS1800
dBm
dBm
dBm
dBm
dBm
dBm
TX Power
control level
030±3
128±3
226±3
324±3
422±3
520±3
PCS1900
dBm
dBm
dBm
dBm
dBm
dBm
11 21±2
12 19±2
13 17±2
14 15±2
15 13±2
16 11±3
17 9±3
18 7±3
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
618±3
716±3
814±3
912±4
10 10±4
11 8±4
12 6±4
13 4±4
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
618±3
716±3
814±3
912±4
10 10±4
11 8±4
12 6±4
13 4±4
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
19 5±3
dBm
14 2±5
15 0±5
2-2
dBm
dBm
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14 2±5
15 0±5
dBm
dBm
Product Function
3.
Main Function
K, WQVGA
- 262
Mega CMOS Digital X4 Camera
-3
CIF Camera
Memory
Dimension
Standard Battery
External Memory:microSD
USB
GSM900/DCS1800/PCS1900
WCDMA
Bluetooth V2.0, Power Class
A-GPS(CP, SUPL)
GPRS/Multi-slot(class1
Max D/L
Interface:S20pin
MP3/AAC/AAC+/eAAC+/AMR(Voice Tag)
Voice memo&mail
JSR JAVA(MIDP2.0,CLDC1.1,JSR185
OMA DRM V2.0 with SW obfuscation&secure HW
OZ e-mail(Java)
TTY Supported
Proximity Sensor
BB:MSM6290, PM6658
RF:RTR6285
-
:3G
2.0 /
2100
240x400, 3.2"
NAND
: 109.5 X 57 X 12.7
HS
Mbps(HSDPA), Max U/L
3.6
+1G
: 1300
0),
TFT
SDRAM
mm
mAh
2
EDGE/Multi-slot(class1
kbps
384
)
0)
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10.
Reference data
Reference Abbreviate
ADC :
―
AMPS :
―
― BGA :
― BPF :
― CDMA :
DL :
―
FTP :
―
GPS :
―
― MMS :
PBA :
―
PCS :
―
PIM(S) :
―
QPSK :
―
RF :
―
RSS :
―
SAW :
―
SMS :
―
TCXO :
―
TSP :
―
UL :
―
USB :
―
Analog to Digital Converter
Advanced Mobile Phone System(analog IS-95)
Global Positioning System
Radio Frequency
Uplink
Ball Grid Array
Band Pass Filter
Code Division Multiple Access
Downlink
File Transfer Protocol
Multimedia Messaging Service
Panel Board Assembly
Personal Communication System
Personal Information Management(System)
Quadrature Phase Shift Keying
Received Signal Strength
Surface Acoustic Wave
Short Message Service
Temperature Compensated Crystal Oscillator
Touch Screen Panel
Universal Serial Bus
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Safety Precautions
1.
Repair Precaution
1-1.
Repair in Shield Box, during detailed tuning.
―
Take specially care of tuning or test, because the specification of cellular phone is sensitive for
surrounding interference(RF noise).
Be careful to useakind of magnetic object or tool, because performance of parts is damaged by
―
the influence of magnetic force.
Surely useastandard screwdriver when you disassemble this product, otherwise screw will be
―
worn away.
Useathicken twisted wire when you measure level.
―
thicken twisted wire has low resistance, therefore error of measurement is few.
A
Repair after separate Test Pack and Set because for short danger(for example an overcurrent
―
and furious flames of parts etc) when you repair board in condition of connecting Test Pack and
tuning on.
Take specially care of soldering, because Land of PCB is small and weak in heat.
―
Surely tune on/off while using AC power plug, becausearepair of battery charger is dangerous
―
when tuning ON/OFF PBA and Connector after disassembling charger.
Don't use as you pleases after change other material than replacement registered on SEC System.
―
Otherwise engineer in charge isn't charged with problem that you don't keep this rules.
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