Contact Image Sensor Heads for narrow-width scanners LSH2004-AA20A Compatible with A6 size media, feature a dual-arch structure, allowing straight pass reading (both-directions). In addition, they are compact, measuring only 119.5mm in length. Applications Check readers, card scanners, and a variety of other image input devices. Features 1) Signal amplifier integrated into each sensor IC in order to eliminate external noise ; compatible with 3.3V interface. 2) LED light source mounted on the same substrate as the sensor chip itself, resulting in a more compact, lightweight package. 3) Proprietary prism maintains a uniform output signal. 4) Ceramic substrate used, ensuring excellent dimensional and thermal stability. Dimensions (Unit : mm) CL No.1 Pixel 25±1 Max. 1.5 A 15.5±1 (12.9) No.1 Pin No. Deflection at the top of glass:0-0.25 No.1 No.2 No.3 No.4 No.5 No.6 Projection to platen is positive. (NOTE 2) Socket Housing:IL-Z-9S-S125C3(JAE) Socket Contact:IL-Z-C3-A-15000(JAE) www.rohm.com (3.8) No.9 (NOTE 1) c 2011 ROHM Co., Ltd. All rights reserved. ○ 2.5 10.7±0.4 29.75±0.3 Max.2 60±0.3 5±0.1 φ2±0.05 (Depth 1) 17.5±0.25 Paper Feed Direction 3.96±0.5 12.5±0.05 5.5±0.3 119.5±0.3 109.6 (Effectiv Reading Width :104.6) 1/4 Signal CLK SP VDD GND Ao RLED Pin No. Signal No.7 No.8 No.9 GLED BLED VLED 2011.03 - Rev.B LSH2004-AA20A Data Sheet Characteristics Parameter Symbol Typ. Unit Effective scanning width − 104.6 mm Primary scan dot density − 200 dpi − 864 dots VDD 3.3 V Scanning speed SLT 0.125×3 ms / line Clock frequency CLK 8 MHz Total dot number Power supply voltage Maximum dynamic range VRMax. 0.5 V Minimum dynamic range VRMin. 0.25 V Vod 0.8±0.2 V − 5 to 45 °C Dark output Operating temperature Pin assignments No. Circuit I/O 1 CLK I Clock 2 SP I Start Pulse 3 VDD I Power Supply 4 GND I Ground 5 Ao O Analog Output 6 RLED I LED ground 7 GLED I LED ground 8 BLED I LED ground 9 VLED I LED power supply Functions www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ 2/4 2011.03 - Rev.B LSH2004-AA20A Data Sheet Timing chart (a) CLK Timing Chart 1/fCLK twCLK 50% 50% twCLK 50% 50% CLK ts 50% 50% SP tSETUP tHOLD Ao 1pixel 2pixel (b) Data Output Timing Chart After turning on the SP pulse, the analog output shape starts from the setting up point of 65 clock pulse. 1 2 64 65 66 CLK SP Ao VREF Output Period (64pixels) Analog Output Period 1 to 64 pixels 1 to 864pixels Note) Output blank part cannot be used as the analog output standard level. www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ 3/4 2011.03 - Rev.B LSH2004-AA20A Data Sheet Inner circuit VDD 1μF x 4 680Ω 864 1 GND 1μF SP VDD ANALOG MEMORY CIRCUIT 220Ω CLK Ao VREF 100kΩ 1μF VLED RGND GGND BGND Peripheral circuit 8 7 6 9 5 3 2 1 4 C2 R2 R1 C1 B G R VDD C3 SP CLK C4 LED GND VLED Ao GND ∗ R1=R2=100Ω C1=47μF, C2=100pF C3=100μF, C4=0.1μF ∗ Please adjust the value of resistance to fit your interface circuit. www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ 4/4 2011.03 - Rev.B Notice Notes Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A