1/4 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b contact image sensor heads for narrow-width scanners LSH2004-AA30A these image sensor heads feature hi gh-speed scanning (1000mm/s) and are comp atible with a6 size media. they are center connector type units with no frame protrusion, simplifying assembly. ? applications check readers, card scanners, and a va riety of other image input devices. ? features 1) signal amplifier integrated into each sens or ic in order to eliminate external noi se ; compatible with 3.3v interface. 2) led light source mounted on the same subs trate as the sensor chip itself, resulti ng in a more compact, lightweight package. 3) utilizes proprietary prism for improved lighting efficiency. 4) ceramic substrate used, ensuring excell ent dimensional and thermal stability. ? dimensions (unit : mm) no.8 pixel pin no. signal no.1 no.2 no.3 no.4 no.5 no.7 109.6(effective reading width:107.8) 124.0 0.3 5.5 0.5 18.0 0.4 8.0 0.5 14 0.2 5.6 0.2 2 0.2 10.5 0.4 no.8 no.9 no.6 no.10 no.11 no.12 ao gnd vdd nc gnd sp gnd clk vled gled rled bled 2 2- 2.2 no.1 no.12 max2 max1.5 15.5 1 25 1 32 0.3 62 0.3 60 0.3 (note 2) socket housing:il-z-12s-s125c3(jae) socket contact:il-z-c3-a-15000(jae) paper feed direction (note 1) deflection at the top of glass:0-0.25 a (depth 5) pin no. signal projection to platen is positive.
2/4 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b data sheet LSH2004-AA30A ? characteristics parameter slt clk 107.8 200 864 3.3 0.125x3 8 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 ? analog signals are produced output at double rate of clock frequency. ? pin assignments nc circuit ao no. analog output ground power supply non connect ground start pulse clock ground 1 2 3 4 5 6 7 o i i ? i i i i / o functions gnd sp gnd 8i clk led power supply 9i vled led ground led ground 10 i gled 11 i rled led ground 12 i bled v dd gnd
3/4 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b data sheet LSH2004-AA30A ? timing chart (a) clk timing chart thold tsetup 50% 50% 50% 50% 50% 50% 1/fclk twclk twclk ts c lk s p a o 1pixel 2pixel (b) data output timing chart after turning on the sp pulse, the analog output shape st arts from the setting up point of 65 clock pulse. n ote) output blank part cannot be used as the analog output standard leve l. clk sp ao 1 2 64 65 66 v ref output period (64pixels) analog output period 1 to 64clock 1 to 864pixels
4/4 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.03 - rev.b data sheet LSH2004-AA30A ? inner circuit v dd g nd sp ao clk 1 f x 4 1 f 100k 864 680 220 1 f v dd v ref 1 analog memory circuit v led b gnd g gnd r gnd ? peripheral circuit 12 10 11 9 1 3 6 c3 c1 c2 r1 r2 a v dd sp clk gnd vled led bgr gnd 8 2 5 7 c4 c5 ? r1=r2=100 c1=47 f c3=100 f, c4=0.1 f, c5=100pf ? please adjust the value of resistance to fit your interface circuit.
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