The TEA5114 from Thomson-SCF is a 16 pin and contains three
75 ohm switches. To send video down a long cable you can try one
of the MAX transconductance video driver amp/receiver pairs. I've
done this to a neighbour's house 100m away down an unused pair
in a LAN cable using a MAX435 tx and MAX436 rx. The video gets
there OK, and the balanced signal of the MAX435 eliminates much
noise. Over that distance though you may need additional filtering if
the synch pulses get mixed up with hum and cause an unsteady
picture. 1000m is quite a distance, perhaps you could get advice
from a TV station techie

A project using the TEA5114

http://www.ozemail.com.au/~tecknolt/ATV/JOTA.htm

> Hmm..does anyone know of a video switching chip ? preferably eight
> pin...

> If l wanted to send a video signal down say 1km of wire would that work
> or would l need some type of drivers/recievers ? This really isnt my field
> of knowledge just playing around at the moment so if anyone has any
> handy hints let me know please...thank you

> Paul Drummond

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