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Function
The
STB adopts embed middleware technology and browser, provides
many kinds of multimedia services, which help to realize so
many functions, such as EPG ( Electronic Program Guide), high
speed data broadcast, software upgrade online and receiving
news, market information, life information and so on in web
format, automatically scan frequency, store the digital
programs individuation, software upgradable though the
external serial port, embed several games. It is a family
multimedia information receive terminal with low price and
high performance.
The product follows the following standard:
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GB/T
Channel coding and modulation standard for Digital Video
Broadcasting-Cable（DVB-C）
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ISO/IEC 13818 Information technology-Generic coding of
moving picture and associated audio
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EN
300 468
Digital Video Broadcasting (DVB);
Specification for Service Information (SI) in DVB systems (DVB-SI)
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EN 300 472
Specification
for conveying ITU-R System B Teletext in DVB bitstreams
(DVB-TXT)；
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EN 301 192
Specification
for data broadcasting
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TR 101 202
Digital Video Broadcasting (DVB); Guidelines for the
implementation and usage of the DVB data broadcasting
specification
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TS 102 201 Technical specifications of DVB-IRD interface
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EN 50221 Common Interface
specification for conditional access and other digital video
broadcasting decoder applications
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TS 101 197-1
DVB
SimulCrypt; Part 1: Head-end architecture and
synchronization
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ETR 289
Digital Video Broadcasting (DVB); Common Scrambling (CS)
system description
(DVB-CSA)；
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ETR 154
Digital broadcasting systems for television; implementation
guidelines for the use of MPEG-2 systems; video and audio in
satellite and cable broadcasting applications
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ISO 7816 Smart Card standard
Features
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Supports
the receiving of data in HTML format
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Auto-switch
PAL/NTSC format
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Support
online download and update of software
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Software
upgradable through a external
Serial
Communication Interface
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Video
YUV, S-Vide, CVBS output.
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Audio
Monophonic/ Dual Monophonic /Stereo output
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Support
EPG
（Electronic
Program Guide）
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Standard
smart card interface for receiving encrypted digital
programs.
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Automatic
record of individuation information
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Automatic
Frequency search
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Embed
several games（Tetris,
Snake Mania ,Gobang ?Five in a Row）
Electrical property parameters
|
No. |
Test Parameters |
Unit |
Specifications |
|
1 |
Input Signal &
Demodulation Specifications |
Receiver
Operating Frquency Rang |
MHz |
48~ 860 |
|
2 |
Input Impedance |
Ω |
75 |
|
3 |
Channel Width |
MHz |
8 |
|
4 |
Minimum
Receiving Signal Level |
dBuV |
35 |
|
5 |
Maximun
Receiving Singal Level |
dBuV |
100 |
|
6 |
C/N Shreshold |
ｄＢ |
23.4 |
|
7 |
Support Symbol
Rate Rang |
Mbaud |
3.6~6.952 |
|
8 |
PAL-D Video
Output
|
Video Output
Rang |
ｍＶｐ－ｐ |
700?5 |
|
9 |
Video
Synchronization Rang |
ｍＶｐ－ｐ |
300? |
|
10 |
Video Rang and
Frequency Response |
ｄＢ |
?.5 (≤ 4.8MHz)
≤+0.5, ≥-1.0 ( 4.8MHz ~
5MHz)
≤+0.5, ≥-4 (≥5.5MHz) |
|
11 |
Differential
Gain
(DG) |
% |
?5 |
|
12 |
Differential
Phase
(DP) |
|
?5 |
|
13 |
Video S/N Ratio |
ｄＢ |
≥ 56 |
|
14 |
Luminance
Nonlinear |
% |
≤ 5 |
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15 |
Chrominance/Luminance Gain difference |
% |
?5 |
|
16 |
Chrominance/Luminance delay difference
|
Ns |
?30 |
|
17 |
K quotiety |
% |
?3 |
|
18 |
Audio Output |
Audio Output
Rang |
ｄＢｕ |
0? |
|
19 |
Audio
Distortion Rang |
% |
≤ 1 ( 60Hz - 18ｋＨz
) |
|
20 |
Audio Rang and
Frequency Response |
ｄＢ |
≤+1.0, ≥-2.0 ( 20Hz - 20ｋＨz
)
?.5 ( 60Hz - 18ｋＨz
)
≤+1.0, ≥-3.0 ( 20Hz - 20ｋＨz
) |
|
21 |
Audio S/N
Ratio(Not weighted ) |
ｄＢ |
≥70 |
|
22 |
Audio L&R
Channel Crosstalk |
ｄＢ |
≤ - 70 |
|
23 |
Audio L&R
Channel Phase Difference |
|
≤ 5 ( 60Hz - 18ｋＨz
) |
|
24 |
Audio L&R
Channel Level Difference |
ｄＢ |
≤ 0.5 ( 60Hz - 18ｋＨz
) |
|
25 |
Transmission Bit-Error-Rate |
--- |
≤ 1.0×10-11
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Core Server
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