av matrix input and output channels can be free to choose by the user．complete specifications．realize video and audio signa synchronous or asynchronous switching
product features
◎using programmable logic display circuit．switch and change at will
◎support audio and video synchronization or separate switch
◎signal long distance transmission distortion compensation technology；
◎with memory function
◎support channel switch permissions setting．audio and video channel switch permissions can be separate managed；
◎1.8”lcd display
◎support panel．software and touch screen etc control(central control)ways；
◎each group signals with independent 4level gain adjustment function．solving the problem of signal attenuation or images white；
technical parameters:
video
gain: 0 db
bandwidth: 150mhz (-3db) loaded
crosstalk: -53db @5 mhz, -45db @10 mhz
switching speed: 25ns (shortest)
propagation delay: 5ns (fastest)
type: composite video signal
video input / output
connection: bnc interface
min / max level: 0.5v ~ 2.0v p-p
impedance: 75 ω
return loss: -30db@5mhz
max dc bias error: 1.5v
input / output type: ntsc 3.58, ntsc 4.43, pal, secam
audio signal
input / output interface: rca
gain: 0db interface
frequency response: 20 hz ~ 20 khz
total harmonic distortion plus noise: 0.03% @ 1 khz
s/n: >90db
stereo separation degree: >80db @ 1 khz
cmrr: >75db @: 20 hz ~ 20 khz
control type
serial control interface: rs-232, 9- pin female d
power： ac 220～240v
mtbf： 30,000 hours
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