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| IMAGE SENSOR Driver circuit for CMOS linear image sensor C9001 Compact, easy-to-use driver circuit C9001 is a driver circuit designed for S8377/S8378 series CMOS linear image sensors. C9001 operates a linear image sensor by just inputting two signals (clock and start) and a single +5 V supply. C9001 also outputs a trigger signal for A/D conversion so the external circuit configuration can be simplified. C9001 does not include an image sensor, so select the desired image sensor and order it separately. Features Applications l Single power supply (+5 V) operation l Operation with two input signals (clock and start) l Compact: 50 x 12 mm l Trigger signal output for A/D conversion l Various types of image acquisition l Optical detection equipment I Absolute maximum ratings (Ta=25 C) Parameter Supply voltage Digital input voltage Operating temperature Storage temperature *1: No condensation Symbol Vcc Topr Tstg Value +7 V 0 to +50 *1 0 to +70 *1 Unit V V C C I Specifications Parameter Supply voltage Current consumption High level Digital input Low level Start pulse width Clock frequency Digital rise/fall times Date rate Offset output VIDEO saturation output *2 *2: From offset value. Symbol +Vs +Is VIH VIL Tpwst fCLK tTLH/tTHL fV Voffset Vast Min. 4.9 3.8 0 1/2 x fCLK 0.1 0.1 3.3 Typ. 5.0 20 1/fCLK 14 0.5 - Max. 5.2 30 V 1.6 2/fCLK 500 25 500 4.0 Unit V mA V ns kHz ns kHz V V 1 Driver circuit for CMOS linear image sensor I Block diagram S8377/S8378 CLK START GAIN +5 Vcc SW1: INTERNAL GAIN CHANGE TRIG EOS +5 Vcc FILTER CLAMP VOLTAGE GENERATOR Vcc Vcc VIDEO + GATE CIRCUIT Vcc eos Vclamp Vdd Vss Video * INTERNAL SIGNAL VIDEO APPROX. 100 ns C9001 I Timing chart DUTY RATIO 50 % P-CLK SW2: EXTERNAL/INTERNAL GAIN CHANGE P-ST Vg CLK 1 CLK WIDTH START P-CLK * P-ST * GATE * TRIG EOS 1 CLK WIDTH KACCC0174EA KACCC0175EA I Dimensional outline (unit: mm) 50 0.2 4 12 0.2 1 5 8 SENSOR GAIN SELECTION SWITCH 3.0 0.1 2.0 0.2 CMOS LINEAR IMAGE SENSOR S8377/S8378 SERIES (SOLD SEPARATELY) 1.6 0.1 CIRCUIT/EXTERNAL SWITCH CIRCUIT SWITCH SELECTION S2 CIRCUIT SWITCH SENSOR GAIN High S1 44 2.54 SET UP AT SHIPMENT EXTERNAL SELECTION SENSOR GAIN Low S2: CIRCUIT SWITCH SELECTION S1: SENSOR GAIN Low 2.54 2.54 (2 x) 2.5 0.1 16.1 0.1 7.6 S2 S1 KACCA0115EA I Pin assignment of I/O connector [Connector: LY20-10P-DTI-P1 (made by JAE) ] *3 Pin No. Terminal name CLK START GAIN I/O I EOS TRIG GND Vcc GND VIDEO A.GND *3: A mating connector Description Sensor scan synchronization signal. The sensor is scanned in synchronization with this signal. Sensor scan start signal. The pulse interval of these start signals determines the sensor integration I time. Sensor gain setting. Low gain is selected at High level, and high gain at Low level. (External I gain setting is enabled with S2.) O Sensor end-of-scan signal. Negative logic O A/D conversion timing signal. The number of output pulses is equal to the number of pixels. Circuit ground I +5 V power supply line Circuit ground O Video output signal. Positive polarity Video signal ground is supplied with C9001 along with to a cable (30 cm, preassembled). Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. (c)2002 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 2 Cat. No. KACC1079E01 Jul. 2002 DN |
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