HD-VLC™ Transmitter for HD Video Surveillance
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The GV7700 is a serial digital video transmitter for High Definition component video. With integrated cable driving technology, the GV7700 is capable of transmitting HD video at a compressed 270Mb/s or an uncompressed 1.485Gb/s over 75ohm coaxial cable, or differentially over 100ohm twisted pair cable.
The GV7700 integrates the High Definition Visually Lossless CODEC (HD-VLC™) technology, which has been developed specifically to reduce the transmission data rate of HD video over both coaxial and unshielded twisted pair (UTP) cable. This is achieved by encoding the HD video, normally transmitted at a serial data rate of 1.485Gb/s, to the same rate as Standard Definition (SD) video, at 270Mb/s serial data rate.
At 270Mb/s, the effect of cable loss is greatly reduced, resulting in much longer cable transmission. For 75ohm coaxial cable, HD-VLC allows a 1.485Gb/s HD signal to be transmitted up to four times the normal reach. In typical video over coaxial installations, when paired with Semtech’s GV7704 HD-VLC receiver, cable distances of up to 500m are possible.
The GV7700 can also be configured to transmit HD video over UTP cable, such as Cat-5e and Cat-6 cable, when HD-VLC encoded at 270Mb/s.
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