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Minggu, 09 Mei 2010

Quality Video Mixer GX4201


The modules described in this application note can be used as stand-alone multiplexers for both NTSC/PAL broadcast and any HDTV format applications. In addition, by virtue of their size, their performance and the SIP pin outs, they may be used to form larger n x m, professional video matrices. Each GX4201 device is a 1x1 video crosspoint characterised by a low distortion, unilateral signal path consisting of emitter followers at the input and output with level shifting circuits in between.

High definition TV places additional requirements on crosspoint performance in video switching systems.  These include a wider flat frequency response and better high frequency off isolation  and  crosstalk  performance.   In  larger  routing expandability  and  repeatability  of  system  parameters fromchannel to channel, become even more important. The modular multiplexers described in this application note  take these, as well as other points, into consideration and  provide an optimal solution for the video design engineer.  The multiplexers are realised using Gennum's GX4201 wideband  1x1 crosspoint IC.


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