TCD2707D TOSHIBA CCD Linear Image Sensor CCD (Charge Coupled Device) TCD2707D The TCD2707D is a high sensitive and low dark current 7450 elements x 4 line CCD color image sensor. The sensor is designed for color scanner. The device contains a row of 7450 elements x 4 line photodiodes which provide a 24 lines/mm across a A3 size paper. The device is operated by 5-V pulse, and 10-V power supply. Features * Number of image sensing pixels: 7450 elements x 4 lines * Image sensing pixels size: 4.7 m by 4.7 m on 4.7 m center * Photo sensing region: High sensitive pn photodiode * Clock: 2-phase (5 V) * Distance between photodiode array: Pixel R to pixel G, and pixel G to pixel B = 37.6 m (8 lines) * Internal circuit: Clamp circuit * Package: 22-pin CERDIP * Color filter: Red, green, blue Weight: 5.2 g (typ.) Pixel B to pixel B/W = 56.4 m (12 lines) Pin Connections (top view) OS3 1 SS 22 OS2 2 21 OS1 SW 3 20 OD SS 4 19 RS V CP 5 18 f2B f1A3 6 17 f2A3 SS 7 16 SS f2A2 8 15 f2A1 1 1 1 1 Maximum Ratings (Note 1) Characteristics Symbol Rating Unit VBA V Last stage clock pulse voltage VBB V Shift pulse voltage VSH Reset pulse voltage VRS V Clamp pulse voltage VCP V Switch pulse voltage VSW V Power supply voltage VOD -0.3~15 V Operating temperature Topr 0~60 C f1A2 9 14 f1A1 Storage temperature Tstg -25~85 C SH3 10 13 SH0 12 SH1 Note 1: All voltages are with respect to SS terminals (ground). 1 SH2 11 7450 7450 7450 7450 -0.3~8.0 Red Green Blue Black&White Clock pulse voltage 2003-04-11 TCD2707D Circuit Diagram OD SS SW SS 20 4 3 16 Clamp f1A3 f2A3 6 17 CCD analog shift register (even) SW 13 SH0 148 D149 Photodiode (B/W) S7448 S7449 S7450 D128 D125 D126 D127 S1 S2 D26 D27 D28 Shift gate 0 Shift gate 0 Clamp CCD analog shift register (odd) 148 D149 Photodiode (B) S7448 S7449 S7450 D128 D125 D126 D127 S1 S2 D26 D27 D28 SW 12 SH1 Shift gate 1 SW 14 f1A1 Photodiode (G) 15 f2A1 148 D149 D125 D126 D127 S1 S2 CCD analog shift register D26 D27 D28 Clamp S7448 S7449 S7450 D128 OS1 21 11 SH2 Shift gate 2 SW Photodiode (R) 148 D149 D125 D126 D127 S1 S2 CCD analog shift register D26 D27 D28 Clamp S7448 S7449 S7450 D128 OS2 22 10 SH3 Shift gate 3 OS3 1 Clamp CCD analog shift register 2 5 19 18 7 SS CP RS f2B SS 9 8 f1A2 f2A2 Pin Names OS3 Output signal 3 (red) OS2 Output signal 2 (green, B/W (odd)) SS Ground OS1 Output signal 1 (blue, B/W (even)) SW Mode switch input (color or B/W) OD Power supply SS Ground RS Reset gate CP Clamp gate f2B Last stage transfer clock Transfer clock 3 (phase 1) f2A3 Transfer clock 3 (phase 2) f1A3 SS Ground SS Ground f2A2 Transfer clock 2 (phase 2) f2A1 Transfer clock 1 (phase 2) f1A2 Transfer clock 2 (phase 1) f1A1 Transfer clock 1 (phase 1) SH3 Shift gate 3 SH0 Shift gate 0 SH2 Shift gate 2 SH1 Shift gate 1 2 2003-04-11 TCD2707D Optical/Electrical Characteristics (Ta = 25C, VOD = 10 V, VB = VRS = VSH = VCP = 5 V (pulse), fB = 1.0 MHz, load resistance = 100 kW W, tINT (integration time) = 10 ms, light source = light source A + CM500S (t = 1.0 mm)) Characteristics Sensitivity Symbol Min Typ. Max Black and white RB/W 10.2 12.8 15.4 Red RR 3.8 5.5 7.2 Green RG 5.9 8.5 11.1 Unit Note V/(lxs) (Note 2) RB 2.9 4.2 5.5 PRNU (1) 3/4 10 20 % (Note 3) PRNU (3) 3/4 3 12 mV (Note 4) VSAT 1.0 1.5 3/4 V (Note 5) Black and white SE (B/W) 0.06 0.12 3/4 (Note 6) SE (color) 0.09 0.18 3/4 Ixs Color Dark signal voltage VDRK 3/4 2 5 mV (Note 7) Dark signal non uniformity DSNU 3/4 8 12 mV (Note 8) DC power dissipation PD 3/4 400 600 mW 3/4 Total transfer efficiency TTE 92 97 3/4 % 3/4 Output impedance ZO 3/4 0.2 0.5 kW 3/4 Black and white VOS (B/W) 4.0 5.5 7.0 V (Note 9) Color VOS (color) 3.0 4.5 6.0 Black and white NDI (B/W) 3/4 0.7 3/4 1.4 3/4 (Note 10) NDI (color) 3/4 mV Color Blue Photo response non uniformity Saturation output voltage Saturation exposure DC signal output voltage Random noise Note 2: Sensitivity is defined for each color of signal outputs average when the photosensitive surface is applied with the light of uniform illumination and uniform color temperature. Note 3: PRNU (1) is defined for each color on a single chip by the expressions below when the photosensitive surface is applied with the light of uniform illumination and uniform color temperature, and the incident light is 50% of SH (typ.). PRNU (1) = DX 100 (%) X X : Average of total signal outputs DX: The maximum deviation from X . Note 4: PRNU (3) is defined as maximum voltage with next pixel, where measured 5% of SE (typ.). Note 5: VSAT is defined as minimum saturation output voltage of all effective pixels. Note 6: Definition of SE: V V SE (B/W) = SAT , SE (color) = SAT RB/W RG Note 7: VDRK is defined as average dark signal voltage of all effective pixels. Note 8: DSNU is defined by the difference between average value (VDRK) and the maximum value of the dark voltage. OS VDRK DSNU 3 2003-04-11 TCD2707D Note 9: DC signal output voltage is defined as follows: OS SS VOS Note 10: Random noise is defined as the standard deviation (sigma) of the output level difference between two adjacent effective pixels under no illumination (i.e. dark condition) calculated by the following procedure. Output waveform (effective pixels under dark condition) Video output Video output 200 ns 200 ns DV Pixel n + 1 Pixel n (1) (2) (3) (4) Two adjacent pixels (pixel n and n + 1) in one reading are fixed as measurement points. Each of the output levels at video output periods averaged over 200 nanosecond period to get Vn and Vn + 1. Vn + 1 is subtracted from Vn to get DV. DV = V (n) - V (n + 1) The standard deviation of DV is calculated after procedure (2) and (3) are repeated 30 times (30 readings). DV = (5) 30 1 30 a DVi 30 i =1 s= 2 1 (| DVi | DV ) 30 ia =1 Procedure (2), (3) and (4) are repeated 10 times to get 10 sigma values. 10 s = 1 asj 10 j=1 (6) I value calculated using the above procedure is observed 2 times larger than that measured relative to the ground level. So we specify the random noise as follows. NDs = 1 2 s 4 2003-04-11 TCD2707D Operating Condition (Ta = 25C) Characteristics Clock pulse voltage Last stage clock pulse voltage Symbol Min Typ. Max High level VB1A 4.75 5.0 5.5 Low level VB2A 0 3/4 0.25 4.75 5.0 5.5 0 3/4 0.25 4.75 5.0 5.5 0 3/4 0.25 4.75 5.0 5.5 0 3/4 0.25 4.75 5.0 5.5 0 3/4 0.25 4.75 5.0 5.5 0 3/4 0.25 9.5 10.0 11.0 High level Low level VB2B High level Shift pulse voltage Low level VSH High level Reset pulse voltage Low level VRS High level Clamp pulse voltage Low level VCP High level Switch pulse voltage Low level Power supply voltage VSW VOD Unit V V V V V V V Clock Characteristics (Ta = 25C) Characteristics Symbol Min Typ. Max fB (B/W) 3/4 1.0 25 fB (color) 3/4 1.0 20 Reset pulse frequency fRS 3/4 1.0 25 MHz Clamp pulse frequency fCP 3/4 1.0 25 MHz CB1A 3/4 260 3/4 CB2A 3/4 220 3/4 CBB 3/4 20 3/4 CSH (SH0, SH3) 3/4 20 3/4 CSH 3/4 10 3/4 Clock pulse frequency Clock capacitance Last stage clock capacitance Shift gate capacitance (Note 11) (SH1, SH2) Unit MHz pF pF pF Reset gate capacitance CRS 3/4 20 3/4 pF Clamp gate capacitance CCP 3/4 15 3/4 pF Switch gate capacitance CSW 3/4 10 3/4 pF Note 11: VOD = 10 V 5 2003-04-11 OS1, 2, 3 (color) CP RS f2A, f2B f1A SH1, 2, 3 SH0 (high) Timing Chart 1 (color mode) D13 D12 D1 Dummy outputs (26 pixels) D64 D63 D62 D61 D60 D125 D124 (6 pixels) S3697 S3696 S3690 S3689 S3688 S3687 D132 D130 D26 D25 D0 Dummy outputs (22 pixels) D133 S3686 S1 D127 D126 D123 D122 D121 6 D134 1 line readout period (7600 pixels) Signal outputs (7450 pixels) D131 (6 pixels) D145 Dummy outputs (12 pixels) D146 Dummy outputs (128 pixels) Light shield outputs (96 pixels) tINT (integration time) D149 D148 D147 D129 D128 S7450 S3698 TTE test outputs (1 pixel) Dummy outputs (3 pixels) 2003-04-11 TCD2707D tINT (integration time) D133 D130 D131 D128 D129 S7449 S7450 S129 S130 S127 S128 S125 S126 S123 S124 S121 S122 S119 S120 S117 S118 S115 S116 S1 S2 D126 D127 D124 D125 D122 D123 D120 D121 D52 D53 D50 D51 D26 D27 D24 D25 D2 D3 D0 D1 Dummy outputs (64 pixels 2) 1 line readout period (3800 pixels 2) Signal outputs (3725 pixels 2) D135 D132 7 Dummy outputs (11 pixels 2) (3 pixels 2) D134 (3 pixels 2) D147 Light shield outputs (48 pixels 2) D146 Dummy outputs (13 pixels 2) D149 OS1 (B/W) OS2 (B/W) CP RS f2A, f2B f1A SH0 SH1, 2, 3 (high) Timing Chart 2 (B/W mode) D148 Dummy outputs (6 pixels 2) TTE test outputs (1 pixel 2) Dummy outputs (1 pixel 2) 2003-04-11 TCD2707D D130 D131 D128 D129 S1 S2 D126 D127 D124 D125 D122 D123 D120 D121 D24 D25 D2 D3 D0 D1 D149 D149 D148 D148 D147 D147 D146 D146 D145 D145 D134 D134 D133 D133 D132 D132 D131 D131 D130 D130 D125 D125 D124 D124 D123 D123 D122 D122 D121 D121 D64 D64 D1 D1 D0 D0 8 D133 1 line readout period (3800 pixels) D135 D132 1 line readout period (7600 pixels) D134 OS1 (B/W-EVEN) D147 OS1 (blue) D146 OS2 (B/W-ODD) D149 OS2 (green) SW CP RS f2A, f2B f1A SH1, 2, 3 SH0 Timing Chart 3 (color (R) B/W mode) 2003-04-11 TCD2707D D148 TCD2707D Timing Requirements t2 t3 t4 f1A SH t1 t5 f2A, f2B GND f1A 1.5 V (min) 1.5 V (min) t18 RS CP (Note 12) t19 SW B/W (R) color mode SW: Low (R) High Color (R) B/W mode SW: High (R) Low Note 12: Hold the RS and CP pins at low during this period. t7 t6 f2B t8 t10 t9 t14 RS t16 t15 CP t11 t12 t13 t17 OS 9 2003-04-11 TCD2707D SH Input SH0 or SH1, SH2, SH3 t20 SH1, SH2, SH3 or SH0 Prohibited Combination of SH Inputs SH1, SH2, SH3: "L" SH0: "L" Characteristics Typ. Symbol Min t1 120 1000 3/4 t5 1000 1200 3/4 t2, t4 0 50 3/4 ns Pulse timing of SH and f1A SH pulse rise time, fall time (Note 12) Max Unit ns t3 3000 5000 3/4 ns f1, f2 Pulse rise time, fall time t6, t7 0 50 3/4 ns RS pulse rise time, fall time t8, t10 0 20 3/4 ns t9 10 100 3/4 ns t11, t13 0 20 3/4 ns CP pulse width t12 10 200 3/4 ns Pulse timing of f2B and CP t14 0 40 3/4 ns t15 0 0 3/4 t16 10 100 3/4 3/4 10 3/4 3/4 15 3/4 SH pulse width RS pulse width CP pulse rise time, fall time Pulse timing of RS and CP Video data delay time B/W t17 (Note 14) Color ns ns Pulse timing of SH and RS t18 1000 3/4 3/4 ns Pulse timing of SH and SW t19 100 500 t3 - 100 ns Mode switching (color B/W) timing of SH pulse t20 3000 5000 3/4 ns Note 12: Measured with fRS = 1 MHz. Note 13: Load resistance is 100 kW. Mode Switch Input Output Type SW Input Pulse Color High B/W Low 10 2003-04-11 TCD2707D Typical Spectral Response Spectral Response (typ.) 1.0 Ta = 25C Red Green 0.9 0.8 Relative response Blue 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 400 450 500 550 Wavelength 11 600 650 700 (nm) 2003-04-11 TCD2707D Cautions 1. Electrostatic Breakdown The dust and stain on the glass window of the package degrade optical performance of CCD sensor. Keep the glass window clean by saturating a cotton swab in alcohol and lightly wiping the surface, and allow the glass to dry, by blowing with filtered dry N2. Care should be taken to avoid mechanical or thermal shock because the glass window is easily to damage. a. b. c. Prevent the generation of static electricity due to friction by making the work with bare hands or by putting on cotton gloves and non-charging working clothes. Discharge the static electricity by providing earth plate or earth wire on the floor, door or stand of the work room. Ground the tools such as soldering iron, radio cutting pliers of or pincer. It is not necessarily required to execute all precaution items for static electricity. It is all right to mitigate the precautions by confirming that the trouble rate within the prescribed range. 2. Window Glass The dust and stain on the glass window of the package degrade optical performance of CCD sensor. Keep the glass window clean by saturating a cotton swab in alcohol and lightly wiping the surface, and allow the glass to dry, by blowing with filtered dry N2. Care should be taken to avoid mechanical or thermal shock because the glass window is easily to damage. 3. Incident Light CCD sensor is sensitive to infrared light. Note that infrared light component degrades resolution and PRNU of CCD sensor. 4. Mounting on a PCB This package is sensitive to mechanical stress. Toshiba recommends using IC inserters for mounting, instead of using lead forming equipment. 5. Soldering Soldering by the solder flow method cannot be guaranteed because this method may have deleterious effects on prevention of window glass soiling and heat resistance. Using a soldering iron, complete soldering within ten seconds for lead temperatures of up to 260C, or within three seconds for lead temperatures of up to 350C. 12 2003-04-11 TCD2707D Package Dimensions Weight: 5.2 g (typ.) 13 2003-04-11 TCD2707D RESTRICTIONS ON PRODUCT USE 000707EBA * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 14 2003-04-11