LSH1208-BA50A_11

Color Contact Image Sensor Heads for High-speed Scanner LSH1208-BA50A Contact Image Sensor Heads with 3 times higher scanning speed due to 3ch outputs. Newly developed resolution change-over IC is employed which has improved noise resistance. Applications High speed reading equipment (i.e. document scanners, wide format scanners). Features 1) High speed reading capability due to 3 analog output. 2) Signal amplifier is built into the sensor IC in order to increase immunity to external noise. 3) ROHM’s newly developed sensor IC reduces failures due to ESD (based on the IEC61000-4-2 standard). 4) With the proprietary prism, the output signal is maintained uniformly. 5) The ceramic substrate is used for excellent dimensional accuracy and thermal stability. Dimensions (Unit : mm) 236 ±0.5 2-φ1.5×2 Oval Hole D4MIN Scanning Line 216 (Effective Reading Width) Effective 1st bit 9.4 0.324±0.1 14 ±0.2 2-φ1.5 D4MIN 15 2.0±0.8 2- 3 +0/-0.1 MAX.3.15 1mm Pitch 15pin 6.9 6.9 max.1 max.1 max.1 max.1 No.1 Center of FCC 13.8 No.15 Characteristics Parameter Effective scanning width Primary scan dot density Total dot number Power supply voltage Reference voltage Scanning speed Clock frequency Maximum dynamic range Minimum dynamic range Dark output Operating temperature Symbol − − − VDD VREF SLT CLK VRMax VRMin. Vod − Typ. 216 1200 10368 3.3 0.8 1.0 x 3 4 0.5 0.25 VREF + 0.1 − 5 to 45 Unit mm dpi dots V V ms / line MHz V V V °C www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 17.5 1/5 2011.03 - Rev.B LSH1208-BA50A Pin assignments No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Circuit AO3 GND AO2 GND AO1 MODE GND VDD VREF SP CLK V-LED B-GND G-GND R-GND I/O O I O I O I I I I I I I I I I Function Data Sheet Analog output Ground Analog output Ground Analog output Mode select Ground Power supply Reference voltage Start pulse Clock LED power supply BLUE LED ground GREEN LED ground RED LED ground Timing chart (a) CLK Timing Chart 1/fCLK twH twL C LK 50% 50% SP tSETUP tHOLD ts Ao 1pixel 2pixel www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 2/5 2011.03 - Rev.B LSH1208-BA50A (b-1) Data Output Timing Chart (1200dpi mode) After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse. 1200dpi mode Data Sheet 1 2 82 C LK SP A O1 to 3 VREF output period Vdummy Analog output period Vdummy A O1 : A O2 : A O3 : 1 to 82clock 1 to 82clock 1 to 82clock 1 to 100pixels − − 101 to 3456pixels 3457 to 6912pixels 6913 to 10312pixels − − 10313 to 10368pixels Note)The CLK section area which is over the effective pixel numbers (Output blank part) cannot be used as the analog Output standard level. (b-2) Data Output Timing Chart (600dpi mode) After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse. 600dpi mode 1 2 82 C LK SP A O1 to 3 VREF output period Vdummy Analog output period Vdummy A O1 : A O2 : A O3 : 1 to 82clock 1 to 82clock 1 to 82clock 1 to 50pixels − − 51 to 1728pixels 1729 to 3456pixels 3457 to 5156pixels − − 5157 to 5184pixels Note)The CLK section area which is over the effective pixel numbers (Output blank part) cannot be used as the analog Output standard level. www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 3/5 2011.03 - Rev.B LSH1208-BA50A (b-3) Data Output Timing Chart (300dpi mode) After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse. 300dpi mode Data Sheet 1 2 82 C LK SP A O1 to 3 VREF output period Vdummy Analog output period Vdummy A O1 : A O2 : A O3 : 1 to 82clock 1 to 82clock 1 to 82clock 1 to 25pixels − − 26 to 864pixels 865 to 1728pixels 1729 to 2578pixels − − 2579 to 2592pixels Note)The CLK section area which is over the effective pixel numbers (Output blank part) cannot be used as the analog Output standard level. Circuit diagram VDD GND 1μF×6 1 10368 SP VDD ANALOG MEMORY CIRCUIT CLK VREF MODE 1 AO1 AO2 AO3 MODE VREF VLED 3456 3457 6912 6913 10368 RGND GGND BGND www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 4/5 2011.03 - Rev.B LSH1208-BA50A Peripheral circuit Data Sheet SENSOR UNIT 13 14 15 12 1 3 5 9 8 10 11 2, 4, 7 6 R3 R3 R2 B G R R3 C1 C3 A3 A2 A1 VDD C2 SP CLK C5 R1 LED GND C4 VLED VREF GND MODE R1=R2=100Ω, R3=100KΩ C1=C2=47μF C3=100μF, C4=0.1μF, C5=100pF www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 5/5 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