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| IMAGE SENSOR Driver circuit for NMOS linear image sensor C7885 series Driver circuit for voltage-output type NMOS linear image sensor C7885 C7885 series is a driver circuit specifically designed for the Hamamatsu voltage-output type NMOS linear image sensors (S3921 to S3924 series). NMOS linear image sensors are self-scanning photodiode arrays integrated with a scanning circuit of N-channel MOS transistors. C7885 series supplies start pulses, 2-phase clock pulses and reset pulses necessary for voltage-output type image sensor operation. C7885 series also includes a signal processing circuit that inverts and amplifies video signals from an image sensor. C7885 series operates by input of a master start pulse, master clock pulse and connection to a power supply (+12 V or +15 V). C7885-20 is multichannel detector head incorporating driver circuit (C7885) developed for Hamamatsu NMOS linear image sensor. C7885-20 is designed especially for compactness, having an overall length as short as 40 mm or less. The housing case also provides a shielding effect against external noise. As useful options, peripheral devices are available for driving C7885-20, and for the output signal processing. Features l Suitable for voltage-output type image sensors l Compact (compared to conventional type C4074) l Single power supply (+12 V or +15 V) operation I Selection guide Type No. C7885 Product name Driver circuit Feature High-speed driver circuit for voltage-output type NMOS linear image sensors. Has no input/output connector. A dedicated pulse generator is pre-mounted on the driver circuit board. Has no input/output connector. C7885 driver circuit board is installed in a shield case. C7885G Driver circuit + Pulse generator C7885-20 Multichannel detector head Note) 1: Standard input/output connector is FAP-16-07#2 (made by Yamaichi, sold separately). Equivalent connectors are available from other manufacturers. 2: Custom products with an input/output connector pre-mounted are available on request. Please consult our sales office. 3: When ordering along with a dedicated cable (A8226), C7885 will be shipped with a mating connector pre-mounted. 4: We welcome custom requests. Feel free to contact our sales office. 5: When using current-output type NMOS linear image sensors, refer to C7883/C7884 series data sheets. I Specifications (Ta=25 C) Parameter Symbol Supply voltage +Vs C7885 Current C7885G +Is consumption C7885-20 Operation frequency Gain G Operating temperature Topr Storage temperature Tstg * No condensation Condition +12 V +12 V +12 V Master clock frequency: 3 MHz Min. +11.5 Typ. +12.0 30 60 30 6 0 to +50 * -10 to +60 * Max. +15.5 40 80 40 500 Unit V mA mA mA kHz V/pC C C 1 Driver circuit for NMOS linear image sensor I Timing chart MASTER CLOCK CLK MASTER START Start START CLOCK CLOCK st 1 2 C7885 series RESET CLAMP Trigger VIDEO OUTPUT Data Video END OF SCAN EOS KACCC0120EA I Dimensional outlines and input/output signal descriptions (unit: mm) C7885 (4 x) C3 63.5 (4 x) C3 63.5 1.6 10.0 1.6 C7885G 2 1 (2 x) 3.6 16 15 25.4 (2 x) 3.6 7.62 50.8 7.62 7.62 55.88 7.62 7.62 55.88 7.62 KACCA0086EA 25.4 KACCA0106EA Terminal No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Terminal name A. GND +12 V or +15 V A. GND NC A. GND Data Video A. GND A. GND D. GND EOS D. GND Trigger D. GND CLK D. GND Start Description Analog ground Power supply Analog ground No connection Analog ground Analog video signal output; positive polarity Analog ground Analog ground Digital ground Digital output signal indicating end of scan; negative logic Digital ground Digital output signal for A/D conversion; positive logic Digital ground Digital input signal for operating the circuit at the rising edge (in case of C7885G, output signal) Digital ground Digital input signal for initializing the circuit; positive logic. (in case of C7885G, output signal) Interval of these pulses equals the integration time of the sensor. 2 Driver circuit for NMOS linear image sensor C7885 series C7885-20 75.0 (4 x) C7 (8 x) R3 25.0 45. 0 75.0 14.0 65.0 D-SUB 15 PIN SOCKET TYPE 90PCD (4 x) 3.5 PIERCE 46.0 (2 x) M3 EFFECTIVE LENGTH 10 KACCA0112EA Terminal No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Terminal name NC Data video +12 V (+15 V) NC NC Start CLK EOS A. GND A. GND Shield D. GND D. GND D. GND Trigger Description No connection Analog video signal output; positive polarity Positive power supply No connection No connection Digital input signal for initializing the current; positive logic Digital input signal for operating the circuit at the rising edge Digital output signal indicating end of scan; negative logic Analog ground Analog ground Case shield Digital ground Digital ground Digital ground Digital output signal for A/D conversion; positive logic I Pin assignment of "Signal I/O" connector (C7885-20, 15 pin D-sub socket type) 8 7 6 5 4 3 2 1 15 14 13 12 11 10 9 KACCC0069EA 3 Dedicated cable Dedicated cable A8226 Connector on board: UFS-16B-01 Input/output signal connector: BNC (Start, CLK, Trigger, EOS, Data Video) Power supply: lose wire cable Cable length: 1 m A8226 Note) When making a simple in-circuit evaluation of NMOS linear image sensors without any troublesome soldering, use C7883G, C7884G, C7884G-01 or G7885G in combination with A8226. All you have to do is just insert an NMOS linear image sensor into the socket and connect the cables to an oscilloscope, power supply and AD converter. Note that NMOS linear image sensors are sold separately. C7884G used in combination with A8226 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 Cat. No. KACC1076E01 Apr. 2002 DN 4 |
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