PDF UPD8870 Data sheet ( Hoja de datos )

Número de pieza	UPD8870
Descripción	CCD LINEAR IMAGE SENSOR
Fabricantes	NEC
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No Preview Available ! www.DataSheet4U.com DATA SHEET MOS INTEGRATED CIRCUIT µ PD8870 10680 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR DESCRIPTION The µ PD8870 is a color CCD (Charge Coupled Device) linear image sensor which changes optical images to electrical signal and has the function of color separation. The µ PD8870 has 3 rows of 10680 pixels, and each row has a double-sided readout type of charge transfer register. And it has reset feed-through level clamp circuits and voltage amplifiers. Therefore, it is suitable for 1200 dpi/A4 color image scanners, color facsimiles and so on. FEATURES • Valid photocell : 10680 pixels × 3 • Photocell pitch : 4 µ m • Photocell size : 4 × 4 µ m2 • Line spacing • Color filter : 48 µ m (12 lines) Red line - Green line, Green line - Blue line : Primary colors (red, green and blue), pigment filter (with light resistance 107 lx•hour) • Resolution : 48 dot/mm A4 (210 × 297 mm) size (shorter side) : 1200 dpi US letter (8.5” × 11”) size (shorter side) • Drive clock level : CMOS output under 5 V operation • Data rate : 10 MHz Max. • Power supply : +12 V • On-chip circuits : Reset feed-through level clamp circuits :: Voltage amplifiers ORDERING INFORMATION Part Number Package µ PD8870CY CCD linear image sensor 32-pin plastic DIP (10.16 mm (400)) The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. S15328EJ2V0DS00 (2nd edition) Date Published September 2002 NS CP (K) Printed in Japan The mark shows major revised points. 2001 1 page µ PD8870 ELECTRICAL CHARACTERISTICS TA = +25°C, VOD = 12 V, data rate (fφ RB) = 2 MHz, storage time = 5.5 ms, input signal clock = 5 Vp-p, light source : 3200 K halogen lamp + C-500S (infrared cut filter, t = 1 mm) + HA-50 (heat absorbing filter, t = 3 mm) Parameter Saturation voltage Saturation exposure Red Green Blue Photo response non-uniformity Average dark signal Dark signal non-uniformity Power consumption Output impedance Response Red Green Blue Image lag Offset level Note 1 Output fall delay time Note 2 Total transfer efficiency Register imbalance Response peak Red Green Blue Dynamic range Reset feed-through noise Note 1 Random noise (CDS) Symbol Test Conditions Vsat SER SEG SEB PRNU VOUT = 1.0 V ADS Light shielding DSNU Light shielding PW ZO RR RG RB IL VOUT = 1.0 V VOS td VOUT = 1.0 V, t1’, t2’ = 5 ns TTE VOUT = 1.0 V, data rate = 10 MHz RI VOUT = 1.0 V DR1 DR2 RFTN σ CDS Vsat/DSNU Vsat/σ CDS Light shielding Light shielding Min. 3.0 − − − − − − − − 2.52 2.31 1.54 − 4.0 − 92 − − − − − − −1000 − Typ. 3.2 0.889 0.970 1.455 6 0.2 1.0 360 0.35 3.60 3.30 2.20 1.5 5.5 25 98 1.0 630 540 460 3200 3200 −300 1.0 Max. − − − − 20 4.0 4.0 480 1.00 4.68 4.29 2.86 7.0 7.0 − − 4.0 − − − − − +500 − Unit V lx•s lx•s lx•s % mV mV mW kΩ V/lx•s V/lx•s V/lx•s % V ns % % nm nm nm times times mV mV Notes 1. Refer to TIMING CHART 2, 3. 2. When each fall time of φ 1L and φ 2L (t1’, t2’) is the Typ. value (refer to TIMING CHART 2, 3). Data Sheet S15328EJ2V0DS 5 5 Page µ PD8870 TIMING CHART 4 φ TG1 to φ TG3 φ1 90% t13 90% 10% t15 t12 t14 t16 φ2 φ RB φ CLB (Line clamp mode) 90% t17 90% t18 Symbol Min. Typ. Max. Unit t12 t13, t14 5000 0 10000 50 50000 − ns ns t15, t16 900 1000 − ns t17, t18 200 400 − ns Remark Inverse pulse of the φ TG1 to φ TG3 can be used as φ CLB. φ 1, φ 2 cross points φ2 φ1 2 V or more 2 V or more φ 1, φ 2L cross points φ1 φ 2L 2 V or more 0.5 V or more φ 1L, φ 2 cross points φ2 φ 1L 2 V or more 0.5 V or more Remark Adjust cross points (φ 1, φ 2), (φ 1, φ 2L) and (φ 1L, φ 2) with input resistance of each pin. Data Sheet S15328EJ2V0DS 11 11 Page

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