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TCD2953CF 2003-06-04 1 toshiba ccd image sensor ccd (charge coupled device) t c d 2 9 5 3 c f the TCD2953CF is a high sensitive and low dark current 10680 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 10680 elements 6 line staggered photodiodes which provide a 96 lines/mm (2400dpi) across a a4 size paper. the device is operated by 5 v pulse, and 12 v power supply. features ? number of image sensing elements: 10680 elements 6 line ? image sensing element pitch: 4 m ? photo sensing region: high sensitive and low dark current pn photodiode ? distance between photodiode array: 64 m (16 lines), red line-green line, green line-blue line 8 m (2 lines), odd line-even-line ? clock: 2 phase (5 v) ? power supply: 12 v power supply voltage ? internal circuit: clamp circuit ? package: 32 pin clcc package ? color filter: red, green, blue ? overflow drain for antiblooming maximum ratings (note1) characteristics symbol rating unit clock pulse voltage v shift pulse voltage v sh reset pulse voltage v rs clamp pulse voltage v cp ? 0.3~8.0 v power supply voltage v od ? 0.3~15 v operating temperature t opr 0~60 c storage temperature t stg ? 25~85 c note 1: all voltage are with respect to ss terminals (ground). preliminar y os2 32 os1 od ss 1a4 31 30 29 28 27 26 os3 1 2 3 4 5 6 7 ss rs cp nc nc nc nc 25 24 23 22 8 9 10 11 nc nc nc nc nc 1 r 21360 1 1 21360 21360 g b pin connections (top view) ss 1a1 nc nc 21 12 2a3 1a3 sh1 20 19 18 17 13 14 15 16 2a2 1a2 sh3 ss sh2 2a1 2a4
TCD2953CF 2003-06-04 2 circuit diagram ccd analog shift register 1 shift gate 1 clamp 29 28 31 18 os2 os1 od ss ss rs cp 1a4 sh1 2a1 1a1 4 19 os3 d16 d18 d60 d62 s1 s3 d64 d66 74 d76 s21359 s21357 photo diode (b) (odd line) sh3 d14 shift gate 2 ccd analog shift register 2 d15 d17 d59 d61 d63 s2 s4 s21360 d65 73 d75 s21358 s21356 photo diode (b) (even line) d13 30 20 21 27 ccd analog shift register 3 shift gate 3 clamp 32 17 sh2 d16 d18 d60 d62 s1 s3 s5 d64 d66 74 d76 s21359 s21357 photo diode (g) (odd line) d14 shift gate 4 d15 d17 d59 d61 d63 s2 s4 s21360 d65 73 d75 s21358 s21356 photo diode (g) (even line) d13 shift gate 5 clamp 1 d16 d18 d60 d62 s1 s3 s5 d64 d66 74 d76 s21359 s21357 photo diode (r) (odd line) d14 shift gate 6 ccd analog shift register 6 d15 d17 d59 d61 d63 s2 s4 s21360 d65 73 d75 s21358 s21356 photo diode (r) (even line) d13 15 16 3 14 2 13 12 5 2a3 1a3 2a4 ss ss 1a2 ccd analog shift register 4 ccd analog shift register 5 2a2
TCD2953CF 2003-06-04 3 pin names pin no. symbol name pin no. symbol name 1 os3 signal output 3 (red) 32 os2 signal output 2 (green) 2 ss ground 31 os1 signal output 1 (blue) 3 rs reset gate 30 od power 4 ss ground 29 cp clamp gate 5 1a1 clock 1 (phase 1) 28 ss ground 6 nc non connection 27 1a4 clock 4 (phase 1) 7 nc non connection 26 nc non connection 8 nc non connection 25 nc non connection 9 nc non connection 24 nc non connection 10 nc non connection 23 nc non connection 11 nc non connection 22 nc non connection 12 2a1 clock 1 (phase 2) 21 2a4 clock 4 (phase 2) 13 2a2 clock 2 (phase 2) 20 2a3 clock 3 (phase 2) 14 1a2 clock 2 (phase 1) 19 1a3 clock 3 (phase 1) 15 sh3 shift gate 3 18 sh1 shift gate 1 16 ss ground 17 sh2 shift gate 2 optical/electrical characteristics (ta = = = = 25c, v od = = = = 12 v, v = = = = v sh = = = = v rs = = = = v cp = = = = 5 v (pulse), f = = = = 1 mhz, f rs = = = = 2 mhz, t int = = = = 11 ms, light source = = = = a light source + + + + cm500s filter (t = = = = 1 mm), load resistance = = = = 100 k ? ? ? ? ) characteristics symbol min typ. max unit note red r (r) 1.0 1.5 2.0 green r (g) 1.4 2.0 2.6 sensitivity blue r (b) 0.9 1.4 1.9 v/lx k s (note 2) prnu (1) ? 15 20 % (note 3) photo response non uniformity prnu (3) ? 3 12 mv (note 4) register imbalance ri ? 1 3 % (note 5) saturation output voltage v sat 3.2 3.6 ? v (note 6) saturation exposure se 1.23 1.80 ? lx k s (note 7) dark signal voltage v drk ? 0.5 2.0 mv (note 8) dark signal non uniformity dsnu ? 2.0 7.0 mv (note 8) dc power dissipation p d ? 420 585 mw ? total transfer efficiency tte 92 98 ? % ? output impedance z o ? 0.3 1.0 k ? ? dc compensation output voltage v os 5.0 6.0 7.0 v (note 9) random noise n d ? 0.8 ? mv (note 10) reset noise v rsn ? 0.3 1.0 v (note 9) masking noise v ms ? 0.2 1.0 v (note 9)
TCD2953CF 2003-06-04 4 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. prnu (1) = x x ? 100 (%) where x is average of total signal output and ? x is the maximum deviation from x . the amount of incident light is shown below. red = 1/2se green = 1/2se blue = 1/4se note 4: prnu (3) is defined as maximum voltage with next pixels, where measured at 5% of se (typ.). note 5: register imbalance is defined as follows. (%) 100 x 21359 1) (n x xn ri 21359 1 n y y y y + ? = = note 6: vsat is defined as minimum saturation output of all effective pixels. note 7: definition of se se = g r sat v (lx k s) note 8: v drk is defined as average dark signal voltage of all effective pixels. dsnu is defined as different voltage between v drk and v mdk when v mdk is maximum dark signal voltage. note 9: dc signal output voltage is defined as follows. reset noise voltage is defined as follows. masking noise voltage is defined as follows. v mdk v drk dsnu ss v os v rsn v ms os
TCD2953CF 2003-06-04 5 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. darkconditions) calculated by the following procedure. (1) two adjacent pixels (pixel n and n + 1) in one reading are fixed as measurement points. (2) each of the output level at video output periods averaged over 200 ns period to get v (n) and v (n + 1). (3) v (n + 1) is subtracted from v (n) to get ? v. ? v = v (n) ? v (n + 1) (4) the standard deviation of ? v is calculated after procedure (2) and (3) are repeated 30 times (30 readings). ? 30 1 = i | ? vi | 30 1 = v ? ? 30 1 i 2 ) v v ( 30 1 i = | | = (5) procedure (2), (3) and (4) are repeated 10 times to get sigma value. (6) 10 sigma values are averaged. 10 1 j j 10 1 = = (7) 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. 2 1 nd = video output video output 200 ns 200 ns pixel (n) pixel (n + 1) ? v output waveform (effective pixels under dark condition)
TCD2953CF 2003-06-04 6 operating condition characteristics symbol min typ. max unit note ?h? level 4.5 5.0 5.5 clock pulse voltage ?l? level v a 0 ? 0.3 v ?h? level 4.5 5.0 5.5 shift pulse voltage ?l? level v sh 0 ? 0.5 v ?h? level 4.5 5.0 5.5 reset pulse voltage ?l? level v rs 0 ? 0.5 v ?h? level 4.5 5.0 5.5 clamp pulse voltage ?l? level v cp 0 ? 0.5 v power supply voltage v od 11.4 12.0 13.0 v clock characteristics (ta = = = = 25c) characteristics symbol min typ. max unit clock pulse frequency f a 0.15 1.0 10 mhz reset pulse frequency f rs 0.3 2.0 10 mhz clamp pulse frequency f cp 0.3 2.0 10 mhz clock capacitance (note 11) c a ? 400 ? pf shift gate capacitance c sh ? 50 ? pf reset gate capacitance c rs ? 10 ? pf clamp gate capacitance c cp ? 10 ? pf note 11: v od = 12 v
TCD2953CF 2003-06-04 7 timing chart (bit clamp mode) os test output (2 element) d73 d76 d77 d75 d66 s2 d62 d61 d60 d59 d58 d12 d4 d10 d1 d0 s1 d63 d11 s21360 s21359 d64 d65 d67 sh 1a 2a rs cp d3 d2 d15 d13 d14 d16 s3 d2 d3 d1 d0 1 line readout period (21438 elements) light shield outputs (47 elements) (4 elements) dummy outputs (64 elements) dummy outputs (14 elements) signal outputs (21360 elements) (3 elements) dummy output (1 element) dummy outputs (13 elements) dummy outputs (8 elements) t int (integration time) d74
TCD2953CF 2003-06-04 8 timing requirements os t12 t1 t2 t3 t4 t5 t18 rs cp 1 t14 t15 t9 t6 t7 2 1 sh 2 gnd 1a 3.5 v (max) 1.5 v (min) rs cp 3.5 v (max) 1.5 v (min) t10 t8 t13 t11 t17 t16
TCD2953CF 2003-06-04 9 timing requirements characteristics symbol min typ. (note11) max unit t1 110 1000 ? pulse timing of sh and 1a t5 200 1000 ? ns sh pulse rise time, fall time t2, t4 0 50 ? ns sh pulse width t3 1000 2000 ? ns 1, 2 pulse rise time, fall time t6, t7 0 50 ? ns rs pulse rise time, fall time t8, t10 0 20 ? ns rs pulse width (note 12) t9 15 100 ? ns cp pulse rise time, fall time t11, t13 0 20 ? ns cp pulse width t12 20 100 ? ns pulse timing of 1a , 2a and cp t14 10 40 ? ns pulse timing of rs and cp t15 0 100 ? ns video data delay time (note 13) t16, t17 ? 15 ? ns pulse timing of sh and cp t18 0 500 ? ns note 12: typ is the case of f rs = 2.0 mhz. note 13: load resistance is 100 k ? .
TCD2953CF 2003-06-04 10 typical spectral response wave length (nm) relative response spectral response 1.0 0 400 ta = 25c 0.2 0.4 0.6 0.8 450 500 550 600 650 700 blue green red
TCD2953CF 2003-06-04 11 typical drive circuit os2 os1 od os3 ss sh1 sh2 30 31 28 29 26 27 24 25 23 21 22 2 1 4 3 6 5 8 7 9 11 10 TCD2953CF ic1, 2: tc74ac04p tr1, 2, 3: 2sc1815-y r1: 150 ? r2: 1500 ? 12 v 10 f/25 v 0.1 f/25 v 1a3 1a4 2a3 2a4 os3 os2 os1 + 12 v 0.1 f/25 v r1 r1 r1 tr1 tr2 tr3 r2 r2 r2 r1 r1 r1 ss + 5 v 0.1 f/25 v ic2 sh1 sh2 sh3 rs cp + 5 v 0.1 f/25 v ic3 + 5 v 0.1 f/25 v ic1 1a2 2a2 2a1 1a1 1a1 1a4 10 f/25 v 20 19 18 17 32 12 14 13 16 15 cp rs 2a4 2a3 1a3 nc nc nc nc nc ss nc nc nc nc nc nc 2a1 2a2 1a2 ss sh3
TCD2953CF 2003-06-04 12 caution 1. 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. d. ionized air is recommended for discharge when handling ccd image sensors. 2. incident light ccd sensor is sensitive to infrared light. note that infrared light component degrades resolution and prnu of ccd sensor. 3. moisture-proof packing ccd surface mount products may have a haze on the inside of glass when thermal stress is applied during surface mount assembly after they absorb atmospheric moisture. however, since a haze will disappear if time passes even if a haze happens on the inside of glass, there is no problem in quality, if you are worrisome such a haze, please observe the following precautions: a. this moisture barrier bag may be stored unopened 12 months at or below 30c/90% rh. b. after opening this moisture proof bag, the packages should be assembled within 5 days in an environment less than 30c/60% rh. c. if upon opening, the moisture indicator card shows humidity above 30% or the expiration date has passed, they may still be used with the addition of a bake of 3 hours at 125c. after baking the packages, it should be assembled with 5 days in an environment less than 30c/60% rh. d. expiration date; 12 months from sealing date, which is imprinted near the heat-seal. 4. ultrasonic cleaning ultrasonic cleaning should not be used with such hermetically-sealed ceramic package as ccd because the bonding wires can become disconnected due to resonance during the cleaning process.
TCD2953CF 2003-06-04 13 5. mounting in the case of solder mounting, the devices should be mounted with the window glass protective tape in order to avoid dust or dirt included in reflow machine. 6. soldering temperature profile for pb free good temperature profile for each soldering method is as follows. in addition, in case of the repair work accompanied by ic removal, since the degree of parallel may be spoiled with the left solder, please do not carry out and in case of the repair work not accompanied by ic removal, carry out with a soldering iron or , in reflow, carry out at once. a. 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. b. using long infrared rays reflow/hot air reflow complete the infrared ray reflow process within between 30 seconds and 50 seconds at a package surface (electrode) temperature of between 230c and 260c. refer to the following figure for an example of a good temperature profile for long infrared rays or hot air reflow. 7. window glass protective tape the window glass protective tape is manufactured from materials in which static charges tend to build up. when removing the tape from ccd sensor after solder mounting, install an ionizer to prevent the tape from being charged with static electricity. when the tape is removed, adhesives will remain in the glass surface. since these adhesives appear as black flaws on the image, please wipe off it by a swab or cloth soaked in small amount of organic solution, such as volatile alcohol (ethanol etc.), before including in a product. do not reuse the tape. 8. 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. 180 190 260 230 60-120 seconds 30-50 seconds or less package surface (electrode) temperature time (in seconds)
TCD2953CF 2003-06-04 14 package dimensions weight: 2.8 g (typ.)
TCD2953CF 2003-06-04 15 ? 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. 000707eba restrictions on product use

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