TCD2905D TOSHIBA CCD Image Sensor CCD (charge coupled device) TCD2905D The TCD2905D is a high sensitive and low dark current 5400 elements × 6 line CCD color image sensor which includes CCD drive circuit and clamp circuit. The sensor is designed for scanner. The device contains a row of 5400 elements × 6 line staggered photodiodes which provide a 48 lines/mm (1200 dpi) across a A4 size paper. The device is operated by 5 V pulse and 12 V power supply. Features Weight: 4.5 g (typ.) · Number of Image Sensing Elements: 5400 elements × 6 line · Image Sensing Element Size: 5.25 µm by 5.25 µm on 5.25 µm · Photo Sensing Region: High sensitive and low dark current PN photodiode · Distanced Between Photodiode Array: 63 µm (12 lines) · Clock: 2 phase (5 V) · Power Supply:12 V Power Supply Voltage · Internal Circuit: Clamp Circuit · Package: 22 pin CERDIP Package · Color Filter: Red, Green, Blue Pin Connections (top view) 1 SS 2 21 OS1 RS 3 20 OD CP 4 19 SW NC 5 18 NC NC 6 17 NC NC 7 16 NC f2A2 8 15 f2A1 f1A2 9 14 f1A1 13 SH1 12 SH2 VSH Reset pulse voltage V RS Clamp pulse voltage V CP Switch pulse voltage V SW Power supply voltage VOD -0.3~15 V Operating temperature Topr 0~60 °C SH3 10 Storage temperature Tstg -25~85 °C SS 11 -0.3~8.0 V B Shift pulse voltage 10800 VBA 10800 Clock pulse voltage G Unit R Rating 10800 Symbol 1 OS2 1 22 1 Maximum Ratings (Note1) Characteristic OS3 Note 1: All voltage are with respect to SS terminals (ground). 1 2002-04-03 TCD2905D Block Diagram OD SW f2A1 f1A1 20 19 15 14 CCD ANALOG SHIFT REGISTER 1 13 SH1 PHOTO … DIODE (B) … (even line) … … D74 D76 PHOTO … DIODE (B) … (odd line) D73 D75 S10796 S10797 S10798 S10799 S10800 D64 D65 D66 …… D59 D61 D63 S2 S4 CLAMP D13 D15 D17 OS1 21 …… D60 D62 S1 S3 S5 D14 D16 D18 SHIFT GATE 1 SHIFT GATE 2 CCD ANALOG SHIFT REGISTER 2 CCD ANALOG SHIFT REGISTER 3 12 SH2 PHOTO … DIODE (G) … (even line) … … D74 D76 PHOTO … DIODE (G) … (odd line) D73 D75 S10796 S10797 S10798 S10799 S10800 D46 D65 D66 …… D59 D61 D63 S2 S4 CLAMP D13 D15 D17 OS2 22 …… D60 D62 S1 S3 S5 D14 D16 D18 SHIFT GATE 3 SHIFT GATE 4 CCD ANALOG SHIFT REGISTER 4 CCD ANALOG SHIFT REGISTER 5 10 SH3 PHOTO … DIODE (R) … (even line) … … D74 D76 PHOTO … DIODE (R) … (odd line) D73 D75 S10796 S10797 S10798 S10799 S10800 D64 D65 D66 …… D59 D61 D63 S2 S4 CLAMP D13 D15 D17 OS3 1 …… D60 D62 S1 S3 S5 D14 D16 D18 SHIFT GATE 5 SHIFT GATE 6 CCD ANALOG SHIFT REGISTER 6 4 3 8 9 CP RS f2A2 f1A2 2 2002-04-03 TCD2905D Pin Names Pin No. Symbol 1 OS3 2 3 Name Pin No. Symbol Name Signal Output 3 (red) 12 SH2 Shift Gate 2 SS Ground 13 SH1 Shift Gate 1 RS Reset Gate 14 f1A1 Clock 1 (phase 1) 4 CP Clamp Gate 15 f2A1 Clock 1 (phase 2) 5 NC Non Connection 16 NC Non Connection 6 NC Non Connection 17 NC Non Connection 7 NC Non Connection 18 NC Non Connection 8 f2A2 Clock 2 (phase 2) 19 SW Switch Gate 9 f1A2 Clock 2 (phase 1) 20 OD Power 10 SH3 Shift Gate 3 21 OS1 Signal Output 1 (blue) 11 SS Ground 22 OS2 Signal Output 2 (green) Optical/Electrical Characteristics (Ta = 25°C, VOD = 12 V, VSW = 5 V, VB = VSH = VRS = VCP = 5 V (pulse), fB = 1 MHz, fRS = 2 MHz, tINT = 11 ms, light source = a light source + CM500S filter (t = 1 mm), load resistance = 100 kW W) Characteristics Symbol Min Typ. Max Unit Note Red R (R) 3.2 4.7 6.2 Green R (G) 4.4 6.4 8.4 V/lx･s (Note2) Blue R (B) 2.5 3.7 4.9 PRNU (1) ¾ 10 PRNU (3) ¾ 3 20 % (Note3) 12 mV (Note4) RI ¾ 1 ¾ % (Note5) VSAT 2.0 2.5 ¾ V (Note6) Saturation exposure SE 0.24 0.39 lx･s (Note7) Dark signal voltage VDRK ¾ 0.5 2.0 mV (Note8) Dark signal non uniformity DSNU ¾ 2.0 7.0 mV (Note8) DC power dissipation PD ¾ 480 650 mW Total transfer efficiency TTE 92 98 ¾ % Output impedance ZO － 0.3 1.0 kW DC output voltage VOS 5.0 6.0 7.0 V (Note9) VRSN ¾ 0.3 ¾ V (Note9) NDI ¾ 0.9 ¾ mV (Note10) Sensitivity Photo response non uniformity Register imbalance Saturation output voltage Reset noise Random noise 3 2002-04-03 TCD2905D 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. DX PRNU (1) = ´ 100 (%) X Where X is average of total signal output and DX is the maximum deviation from X . The amount of incident light is shown below. Red = 1/2･SE Green = 1/2･SE Blue = 1/4･SE Note 4: PRNU (3) is defined as maximum voltage with next pixel, where measured at 5% of SE (typ.) Note 5: Register imbalance is defined as follows. 10799 å xn - x (n + 1) =1 n RI = * 100 (%) 10799 * X Note 6: VSAT is defined as minimum saturation output of all effective pixels. Note 7: Definition of SE SE = VSAT (lx･s) RG Note 8: VDRK is defined as average dark signal voltage of all effective pixels. DSNU is defined as different voltage between VDRK and VMDK when VMDK is maximum dark signal voltage. VDRK VMDK DSNU Note 9: DC signal output voltage is defined as follows. Reset Noise Voltage is defined as follows. VRSN OS VMS VOS SS 4 2002-04-03 TCD2905D 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 conditions) calculated by the following procedure. video output Output waveform (effective pixels under dark condition) video output 200 ns 200 ns pixel (n) (1) (2) (3) (4) pixel (n + 1) Two adjacent pixels (pixel n and n + 1) after reference level clamp in one reading are fixed as measurement points. Each of the output level at video output periods averaged over 200 ns period to get V (n) and V (n + 1). V (n + 1) is subtracted from V (n) 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) (6) DV 1 30 å DVi 30 i =1 30 s= 2 1 å ( DVi－DV ) 30 i =1 Procedure (2), (3) and (4) are repeated 10 times to get sigma value. 10 sigma values are averaged. 10 s = 1 åsj 10 j=1 (7) I value calculated using the above procedure is observed 2 times larger than that measured relative to the ground level. So we specify random noise as follows. N Ds = 1 s 2 5 2002-04-03 TCD2905D Operating Condition Characteristics Min Typ. Max 4.5 5.0 5.5 0 0 0.3 4.5 5.0 5.5 0 0 0.5 4.5 5.0 5.5 0 0 0.5 4.5 5.0 5.5 0 0 0.5 4.5 5.0 5.5 0 0 0.5 11.4 12.0 13.0 V Symbol Min Typ. Max Unit Clock pulse frequency fBA 0.15 1.0 5.0 MHz Reset pulse frequency f RS 0.3 2.0 10.0 MHz Clamp pulse frequency f CP 0.3 2.0 10.0 MHz Clock pulse voltage Symbol “H” Level “L” Level VBA “H” Level Shift pulse voltage “L” Level VSH “H” Level Reset pulse voltage “L” Level V RS “H” Level Clamp pulse voltage “L” Level V CP “H” Level Switch pulse voltage “L” Level Power supply voltage V SW VOD Unit V V V V V Clock Characteristics (Ta = 25°C) Characteristics CBA ¾ 400 ¾ pF Shift gate capacitance CSH ¾ 50 ¾ pF Reset gate capacitance CRS ¾ 10 ¾ pF Clamp gate capacitance CCP ¾ 10 ¾ pF Switch gate capacitance CSW ¾ 10 ¾ pF Clock capacitance (Note 11) Note 11: VOD = 12 V 6 2002-04-03 OS SW (“H”) CP RS f2A f1A SH Timing Chart (bit clamp mode) D4 D3 D2 D1 D0 7 1 LINE READOUT PERIOD (10878 elements) SIGNAL OUTPUTS (10800 elements) S3 S2 DUMMY OUTPUTS (14 elements) DUMMY OUTPUTS (7 elements) (4 elements) D68 D67 D66 D65 D64 S10800 S10799 DUMMY OUTPUTS (64 elements) (4 elements) S1 D63 D62 D61 D60 D59 D58 LIGHT SHIELD OUTPUTS (47 elements) D16 D15 D14 D13 D12 D11 D10 DUMMY OUTPUTS (13 elements) D77 D76 D75 D74 2002-04-03 DUMMY OUTPUT (1 element) TEST OUTPUTS (2 elements) TCD2905D OS SW (“H”) CP = SH RS f2A f1A SH Timing Chart (line clamp mode) D4 D3 D2 D1 D0 8 1 LINE READOUT PERIOD (10878 elements) SIGNAL OUTPUTS (10800 elements) S3 S2 DUMMY OUTPUTS (14 elements) DUMMY OUTPUTS (7 elements) (4 elements) D68 D67 D66 D65 D64 S10800 S10799 DUMMY OUTPUTS (64 elements) (4 elements) S1 D63 D62 D61 D60 D59 D58 LIGHT SHIELD OUTPUTS (47 elements) D16 D15 D14 D13 D12 D11 D10 DUMMY OUTPUTS (13 elements) D77 D76 D75 D74 2002-04-03 DUMMY OUTPUT (1 element) TEST OUTPUTS (2 elements) TCD2905D TCD2905D Timing Requirements t2 t3 t4 SH f1 t1 t5 f1A f2 GND 3.5 V (max) 1.5 V (min) 3.5 V (max) 1.5 V (min) RS t20 CP f1 10% t7 t6 f2 10% RS t15 t8 t14 t10 t9 CP t16 t17 t11 t13 t12 10% to the peak OS (bit clamp mode) 10% Video signal Peak 10% t18 10% to the peak Peak 10% to the peak 10% to the peak OS (line clamp mode) Video signal t18 t19 t19 9 2002-04-03 TCD2905D Characteristics Pulse timing of SH and f1 SH pulse rise time, fall time Symbol Min Typ. (Note 12) t1 110 1000 ¾ t5 800 1000 ¾ t2, t4 0 50 ¾ ns Max Unit ns t3 3000 5000 ¾ ns f1, f2 pulse rise time, fall time t6, t7 0 50 ¾ ns RS pulse rise time, fall time t8, t10 0 20 ¾ ns t9 15 100 ¾ ns t11, t13 0 20 ¾ ns CP pulse width t12 25 100 ¾ ns Pulse timing of f1A, f2A and CP t14 10 40 ¾ ns Pulse timing of RS and CP t15 0 100 ¾ ns t16, t17 ¾ 20 ¾ ns t18 ¾ 20 ¾ ns t19 ¾ 35 ¾ ns t20 0 500 ¾ ns SH pulse width RS pulse width CP pulse rise time, fall time Video data delay time (Note 13) Reference level settle time Pulse timing of SH and CP Note 12: Typ. is the case of ff = 1.0 MHz. Note 13: Load resistance is 100 kW. 10 2002-04-03 TCD2905D Typical Spectral Response Spectral Response 1.0 Ta = 25°C Red Relative response 0.8 Green Blue 0.6 0.4 0.2 0 400 450 500 550 Wavelength l 11 600 650 700 (nm) 2002-04-03 TCD2905D Typical Drive Circuit +5 V 0.1 mF/25 V f1A1 12 V f1A2 0.1 mF/25 V f2A1 f2A2 10 mF/25 V IC1 20 19 18 17 OS2 OS1 OD 22 21 SW NC NC 16 15 14 13 12 NC f2A1 f1A1 SH1 SH2 TCD2905D OS3 SS 1 2 RS CP NC NC 3 4 5 6 NC f2A2 f1A2 SH3 SS 7 11 8 9 10 +12 V +5 V 0.1 mF/25 V 0.1 mF/25 V R1 R1 R1 R1 R1 SW R1 SH1 10 mF/25 V TR1 OS1 SH2 TR2 OS2 SH3 TR3 OS3 CP R2 R2 R2 RS IC2 IC1, 2: TC74HC04AP TR1, 2, 3: 2SC1815-Y R1: 150 W R2: 1500 W 12 2002-04-03 TCD2905D Caution 1. 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. 2. Electrostatic Breakdown Store in shorting clip or in conductive foam to avoid electrostatic breakdown. CCD Image Sensor is protected against static electricity, but inferior puncture mode device due to static electricity is sometimes detected. In handing the device, it is necessary to execute the following static electricity preventive measures, in order to prevent the trouble rate increase of the manufacturing system due to static electricity. a. 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. b. Discharge the static electricity by providing earth plate or earth wire on the floor, door or stand of the work room. c. 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. 3. Incident Light CCD sensor is sensitive to infrared light. Note that infrared light component degrades resolution and PRNU of CCD sensor. 4. Lead Frame Forming Since this package is not strong against mechanical stress, you should not reform the lead frame. We recommend to use a IC-inserter when you assemble to PCB. 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 260°C, or within three seconds for lead temperatures of up to 350°C. 13 2002-04-03 TCD2905D Application Note The TCD2905D can be operated in two modes: Normal Readout Mode and Even Line Readout Mode. Each mode is selected by SW terminal. Mode SW Application Example H Normal Readout Mode 1200 DPI/A4 Reading L Even Line Readout Mode 600 DPI/A4 Reading Normal Readout Mode In Normal Readout Mode, the dummy and signal outputs in odd and even lines are read out. This mode provides 1200 DPI/A4 resolution. The timing for this mode is shown in page 8/21, 9/21 and 10/21. Even Line Readout Mode In Even Line Readout Mode, the dummy and signal outputs in even lines are read out. The dummy and signal outputs in odd lines cannot be read out in this mode. This mode provides 600 DPI/A4 resolution. Timing examples for 600 DPI/A4 reading using this mode are shown in page 15/21, 16/21 and 19/21 for reference. In this mode, signal charges of adjacent pixels in even line can be merged at an output stage capacitor using intermittent reset drive. Timing examples for 300 DPI/A4 reading using this mode are shown in page 17/21, 18/21 and 20/21 for reference. 14 2002-04-03 OS SW (“L”) CP RS f2A f1A SH Timing Chart (600 dpi mode) D9 D3 D1 D59 D57 D15 D13 S10798 S4 S2 D63 D61 D11 15 D65 1 LINE READOUT PERIOD (5439 elements) SIGNAL OUTPUTS (5400 elements) D67 DUMMY OUTPUTS (7 elements) (2 elements) D69 DUMMY OUTPUTS (3 elements) D71 (2 elements) LIGHT SHIELD OUTPUTS (24 elements) D73 DUMMY OUTPUTS (32 elements) DUMMY OUTPUTS (6 elements) D77 D75 S10800 DUMMY OUTPUT (1 element) TEST OUTPUT (1 element) 2002-04-03 TCD2905D OS SW (“L”) CP = SH RS f2A f1A SH D9 D3 D1 S10798 S4 S2 D63 D61 D57 D15 D13 D11 16 D65 1 LINE READOUT PERIOD (5439 elements) SIGNAL OUTPUTS (5400 elements) D67 DUMMY OUTPUTS (7 elements) (2 elements) D69 (2 elements) D71 DUMMY OUTPUTS (3 elements) D73 DUMMY OUTPUTS (32 elements) DUMMY OUTPUTS (6 elements) D59 LIGHT SHIELD OUTPUTS (24 elements) Timing Chart (600 dpi/line clamp mode) D77 D75 S10800 DUMMY OUTPUT (1 element) TEST OUTPUT (1 element) 2002-04-03 TCD2905D OS SW (“L”) CP RS f2A f1A SH Timing Chart (300 dpi mode) D9 + D11 D1 + D3 D61 + D63 (1 element) S2 + S4 SIGNAL OUTPUTS (2700 elements) S10798 + S10800 D13 + D15 17 D65 + D67 (1 element) DUMMY OUTPUTS (4 elements) DUMMY OUTPUT (1 element) D69 + D71 1 LINE READOUT PERIOD (2720 elements) D57 + D59 LIGHT SHIELD OUTPUTS (12 elements) D73 + D75 DUMMY OUTPUTS (16 elements) DUMMY OUTPUTS (3 elements) D77 DUMMY OUTPUT (1 element) TEST OUTPUT (1 element) 2002-04-03 TCD2905D OS SW (“L”) CP = SH RS f2A f1A SH D9 + D11 D1 + D3 D61 + D63 D13 + D15 S2 + S4 SIGNAL OUTPUTS (2700 elements) S10798 + S10800 18 (1 element) D65 + D67 1 LINE READOUT PERIOD (2720 elements) (1 element) D69 + D71 DUMMY OUTPUTS (4 elements) DUMMY OUTPUT (1 element) D73 + D75 DUMMY OUTPUTS (16 elements) DUMMY OUTPUTS (3 elements) D57 + D59 LIGHT SHIELD OUTPUTS (12 elements) Timing Chart (300 dpi/line clamp mode) D77 DUMMY OUTPUT (1 element) TEST OUTPUT (1 element) 2002-04-03 TCD2905D TCD2905D Timing Example SH f1A tX SW (“L” ® “H”) SW (“H” ® “L”) Characteristic Pulse timing of SH and SW Symbol Min Typ. Max Unit tX 0 0 ¾ ns Timing Example (600 dpi mode: SW = “L”) f1 f2 RS CP OS (bit clamp mode) Video Signal OS (line clamp mode) Video Signal 19 2002-04-03 TCD2905D Timing Example (300 dpi mode: SW = “L”) f1 f2 RS CP OS (bit clamp mode) Video Signal OS (line clamp mode) Video Signal 20 2002-04-03 TCD2905D Package Dimensions Weight: 4.5 g (typ.) 21 2002-04-03 TCD2905D 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. 22 2002-04-03 This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components.