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control logic/drivers 1 2 3 4 5 6 7 8 28 27 26 25 24 23 22 21 top view v dd c 0 y 1 y 0 c 1 v dd gnd c out y 2 y out c 2 smo v ss scl r out sda 920 g out sel dual-in-line and soic 10 19 b out r 1 11 12 18 17 fb out fb 2 b 1 13 16 r 2 fb 1 14 15 g 2 b 2 g 1 DG894 vishay siliconix document number: 70072 s-52433erev. d, 06-sep-99 www.siliconix.com faxback 408-970-5600 5-1 component video selector wide bandwidth: 200 mhz very low crosstalk: 70 db at 5 mhz cmos compatible i 2 c bus compatible fast switchinget on : <200 ns low r ds(on) : 44 single supply capability low insertion loss improved system performance reduced power consumption easily interfaced future system expansion via i 2 c bus component video switching: rgb + sync, s-vhs, y-c, etc. audio/video routing digital tv ate i 2 c bus audio/video systems scart video switching the DG894 is a monolithic video selector designed for switching a variety of component video signals. the low on-resistance and low capacitance of the DG894 make it ideal for video/audio signal routing. switch control can be through direct cmos addressing or through the two-wire i 2 c bus. the DG894 is built on the vishay siliconix proprietary d/cmos process that combines n-channel dmos switching fets with low-power cmos control logic and drivers. low-capacitance dmos fets are used to achieve high levels of off isolation at low cost. smo sel sda scl function/switch on 0 0 i 2 c bus operation, address a 0 = a1o 0 1 i 2 c bus operation, address a 0 = a0o 1 0 0 0 all switches off 1 0 0 1 y 0 , c 0 1 0 1 0 y 1 , c 1 1 0 1 1 y 2 , c 2 1 1 0 0 r 1 , g 1 , b 1 , f 1 1 1 0 1 r 2 , g 2 , b 2 , f 2 1 1 1 0 r 1 , g 1 , b 1 , f 1 , y 1 , c 1 1 1 1 1 r 2 , g 2 , b 2 , f 2 , y 2 , c 2 temp range package part number 40 to 85 c 28-pin plastic dip DG894dj 40 to 85 c 28-pin wide body soic DG894dw DG894 vishay siliconix www.siliconix.com faxback 408-970-5600 5-2 document number: 70072 s-52433erev. d, 06-sep-99 |