Samsung SGH-S7120U, GT-S7120U Product Specification
2. Specification
2-1. General CH and Freq. Table
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EGSM 900 |
DCS1800 |
PCS1900 |
W-CDMA |
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AWS |
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Freq. |
880~915 |
1710~1785 |
1850~1910 |
1712~1753 |
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Band[MHz] |
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925~960 |
1805~1880 |
1930~1990 |
2112~2168 |
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Uplink/Downlink |
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ARFCN range |
0~124 & |
512~885 |
512~810 |
UL:1312~1513 |
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975~1023 |
DL:1537~1738 |
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Tx/Rx spacing |
45MHz |
95MHz |
80MHz |
400MHz |
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Mod. Bit rate/ |
270.833kbps |
270.833kbps |
270.833kbps |
3.84Mcps |
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Bit Period |
3.692us |
3.692us |
3.692us |
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Time Slot |
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Frame length : |
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576.9us |
576.9us |
576.9us |
10ms |
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Period/Frame |
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4.615ms |
4.615ms |
4.615ms |
Slot length : |
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Period |
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0.667ms |
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Modulation |
0.3GMSK |
0.3GMSK |
0.3GMSK |
QPSK |
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HQPSK |
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MS Power |
33dBm~5dBm |
30dBm~0dBm |
30dBm~0dBm |
24dBm ~ - 50dBm |
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Power Class |
4 |
1 |
1 |
3 |
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(max +33dBm) |
(max +30dBm) |
(max +30dBm) |
(max +24dBm) |
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Sensitivity |
-102dBm |
-100dBm |
-100dBm |
-106.7dBm |
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TDMA Mux |
8 |
8 |
8 |
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Cell Radius |
35Km |
2Km |
2Km |
2Km |
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2-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Specification
2-2. GSM General Specification
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TX Power |
GSM900 |
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TX Power |
DCS1800 |
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TX Power |
PCS1900 |
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control level |
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control level |
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control level |
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5 |
33±2 dBm |
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0 |
30±3 dBm |
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0 |
30±3 dBm |
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1 |
28±3 dBm |
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6 |
31±2 dBm |
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1 |
28±3 dBm |
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2 |
26±3 dBm |
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7 |
29±2 dBm |
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2 |
26±3 dBm |
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3 |
24±3 dBm |
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8 |
27±2 dBm |
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3 |
24±3 dBm |
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4 |
22±3 dBm |
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9 |
25±2 dBm |
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4 |
22±3 dBm |
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10 |
23±2 dBm |
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5 |
20±3 dBm |
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5 |
20±3 dBm |
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6 |
18±3 dBm |
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11 |
21±2 dBm |
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6 |
18±3 dBm |
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7 |
16±3 dBm |
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12 |
19±2 dBm |
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7 |
16±3 dBm |
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13 |
17±2 dBm |
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8 |
14±3 dBm |
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8 |
14±3 dBm |
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14 |
15±2 dBm |
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9 |
12±4 dBm |
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9 |
12±4 dBm |
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10 |
10±4 dBm |
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15 |
13±2 dBm |
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10 |
10±4 dBm |
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11 |
8±4 dBm |
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16 |
11±3 dBm |
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11 |
8±4 dBm |
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12 |
6±4 dBm |
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17 |
9±3 dBm |
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12 |
6±4 dBm |
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13 |
4±4 dBm |
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18 |
7±3 dBm |
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13 |
4±4 dBm |
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14 |
2±5 dBm |
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19 |
5±3 dBm |
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14 |
2±5 dBm |
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15 |
0±5 dBm |
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15 |
0±5 dBm |
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2-2 |
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SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
3. Product Function
Main Function
-262K, WQVGA 240x400, 3.2" TFT
-3Mega CMOS Digital X4 Camera
-CIF Camera
-Memory : 3G NAND + 1G SDRAM
-Dimension : 109.5 X 57 X 12.7 mm
-Standard Battery : 1300mAh
-External Memory : microSD
-USB 2.0 / HS
-GSM900/DCS1800/PCS1900
-WCDMA2100
-Bluetooth V2.0, Power Class 2
-A-GPS (CP, SUPL)
-GPRS/Multi-slot(class10), EDGE/Multi-slot(class10)
-Max D/L 3.6Mbps(HSDPA), Max U/L 384kbps
-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
3-1
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This Document can not be used without Samsung's authorization
10. Reference data
Reference Abbreviate
―ADC : Analog to Digital Converter
―AMPS : Advanced Mobile Phone System(analog IS-95)
―BGA : Ball Grid Array
―BPF : Band Pass Filter
―CDMA : Code Division Multiple Access
― DL |
: Downlink |
―FTP : File Transfer Protocol
―GPS : Global Positioning System
―MMS : Multimedia Messaging Service
―PBA : Panel Board Assembly
―PCS : Personal Communication System
―PIM(S) : Personal Information Management (System)
―QPSK : Quadrature Phase Shift Keying
―RF : Radio Frequency
―RSS : Received Signal Strength
―SAW : Surface Acoustic Wave
―SMS : Short Message Service
―TCXO : Temperature Compensated Crystal Oscillator
―TSP : Touch Screen Panel
―UL : Uplink
―USB : Universal Serial Bus
10-1
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This Document can not be used without Samsung's authorization
1. Safety Precautions
1-1. Repair Precaution
― 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 use a kind of magnetic object or tool, because performance of parts is damaged by the influence of magnetic force.
―Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn away.
―Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore error of measurement is few.
―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, because a repair 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.
1-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
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