1/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b contact image sensor heads for narrow-width scanners LSH3004-AA20A compatible with a6 size media, feature a dual-arch structure, allowing straight-pass reading (both-directions). in addition, it is compact, measuring only 119.5mm in length. ? applications check readers, card scanners, and a va riety of other image input devices. ? features 1) signal amplifier integrated in to each sensor ic in order to eliminate external noise. 2) led light source mounted on the same subs trate as the sensor chip itself, resulti ng in a more compact, lightweight package. 3) proprietary prism maintains a uniform output signal. 4) ceramic substrate used, ensuring excell ent dimensional and thermal stability. ? dimensions (unit : mm) (note 2) socket housing:il-z-9s-s125c3(jae) socket contact:il-z-c3-a-15000(jae) (note 1) deflection at the top of glass:0-0.25 projection to platen is positive. paper feed direction max.1.5 max.2.3 2 ( depth 1) 5.5 17.5 2.5 12.5 119.5 60 15.5 25 29.75 6.5 10.7 5 104.9( effective reading width ) no.9 (12.9) (3.8) no.1 vled bled gled rled a o gnd v dd sp clk no.6 no.9 no.8 no.7 no.5 no.4 no.3 no.2 no.1 signal signal pin no. pin no.
2/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b data sheet LSH3004-AA20A ? characteristics parameter slt clk 104.9 300 1296 3.3 0.28 3 5 0.5 0.25 0.8 0.2 5 to 45 mm dpi dots v ms / line mhz v v v c symbol typ. unit vrmin. vrmax. ? ? ? ? vod v dd effective scanning width primary scan dot density total dot number power supply voltage scanning speed clock frequency maximum dynamic range minimum dynamic range dark output operating temperature ? ? analogue signals are produced output at double rate of clock frequency. ? pin assignments gnd circuit clk no. clock start pulse power supply ground analog output led ground led ground led ground 1 2 3 4 5 6 7 i i i i o i i i / o functions sp rled gled 8i bled led power supply 9i vled v dd ao ? timing chart (a) clk timing chart thold tsetup 50% 50% 50% 50% 50% 1/fclk twclk twclk ts c lk s p a o 1pixel 2pixel
3/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b data sheet LSH3004-AA20A (b) data output timing chart after turning on the sp pulse, the analog output shape st arts from the setting up point of 83 clock pulse. c lk s p a o 12 83 82 84 v ref output period (82pixels) note) output blank part cannot be used as the analog output standard leve l. analog output period 1 to 82clock 1 to 1296pixels ? inner circuit v dd g nd sp ao clk 1 f x 6, 0.1 f x 1 1296 680 220 100k 1 fx1 v dd v ref 1 analog memory circuit v led b gnd g gnd r gnd ? peripheral circuit 87 6 9 5 3 2 c3 c1 r1 r2 a o v dd sp clk gnd vled led bgr gnd 14 c4 c2 ? r1=r2=100 c1=47 f, c2=100pf c3=100 f, c4=0.1 f ? please adjust the value of resistance to fit your interface circuit.
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