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1、Outline
MPEG-2 decoder adopts the most popular single decoding chip SPHE1005A of DVB, having DVB standard full compatibility, TS stream input, super-clear picture and high-fidelity digital stereo output, powerful function of program management and electronic program guides, foreseeable next program, for the use of digital head-end.
DVB standard full-compatibility
Support TS stream input decoding
Remembering the program when lose of power supply
PAL/NTSC automatic identification
Multichannel of video output
Support AC3 digital audio
EPG，foreseeable program
With the function of browsing program
Chinese and English menus
Support OSD teletext （DVB ETS 300 706）and caption.
Support VBI teletext
Can move and delete channel
3、Suggested applications
● Cable Television Digital Head-end；
● Satellite Digital Broadcast Television；
● Terrestrial Digital TV Broadcasting；
● Image Monitoring；
● VOD；
● Distance Teaching；
● Video Conference.
4、Performance Indexes
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Input interface |
DVB standard：ASI interface 75Ω（BNC interface） |
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Output interface |
Audio signal：level 1V mVp-p impedance 600 Ω（RCA interface） |
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Audio
decoding |
Conforming standard: ISO/IEC 13818-3 LAYER I&II
sound channel pattern: L/L、R/L、L/R
Audio code MPEG- I Layer I and I I
Output mode: unbalanced |
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Video
decoding |
Conforming standard: ISO/IEC 13818-2 MPEG-2 MP@ML
Video format: 4:3, 16:9
Resolving power: MAX 720 x576
Video format: PAL/NTSC
Video decoding mode: MPEG-2 MP@ML
Image resolution: 720*576（PAL）、720*480（NTSC）
Video output
Video output range: 700±30mVp-p
Video Synchronization Amplitude： 300±20mVp-p
Differential Gain（p-p） ≤5%
Differential Phase（p-p） ≤5
signal to Noise Ratio（weighted value） ≥56dB
Lum. Nonlinearity ±2.1%
Color/light time delay in variety ≤30Ns
K factor ≤3% |
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Common features |
Size 19 inch 1U standard structure：
Height ： 44mm、 1U
Width ： 482mm
Depth ： 360mm
Environment ：0 ~ 45℃（工作）；-20 ~ 80℃（storage）
Power supply ： AC220V±10%，50Hz，25W |
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