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EPC901 bảng dữ liệu(PDF) 1 Page - Espros Photonics corp |
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EPC901 bảng dữ liệu(HTML) 1 Page - Espros Photonics corp |
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1 / 37 page  Datasheet – epc901 CCD line sensor 1024x1 pixel General Description The epc901 IC is a high-performance CCD line sensor capable of storing a total of 4 frames in the frame store elements for ultra high-speed image acquisition. The acquisition of the image is con- trolled by the external control signal SHUTTER. The epc901 flags when a frame is ready for read-out by asserting the DATA_RDY signal. The transmission of the frame over the video amplifier is controlled by the external control signal READ. When a read-out is initiated by a pulse on the READ signal, it is sampled by a CDS stage. After a fixed delay the frame can be shifted out through the video amplifi- er by applying the appropriate amount of read clock edges. The device offers various configuration options: ■ Gain of the read-out stage selectable of 1, 2 or 4 ■ Transmission direction selectable ■ Region of interest (ROI) centre region (pixel 256 to 767) ■ Lateral binning of 2 or 4 pixels in order to reduce transmission time and noise ■ Single- or multi-frame acquisition ■ Clearing of frames stored and periodic flushing of pixel array to avoid blooming. Features ■ Photosensitive CCD array backside illuminated with 1024x1 pixel ■ Very high frame rate of up to 50 kfps, in burst mode 500 kfps for 4 images (store up to 4 acquired images on-chip in charge do- main) ■ Very high sensitivity due to 100% fill factor and epc's unique OHC15L process technology ■ Pixel size 7.5 x 120μm ■ Correlated-double sampling (CDS) per pixel ■ Single-ended or differential analog video output ■ Simple 5-pin control interface for acquisition and read-out ■ I2C bus interface ■ Internal clock source, trimmable ■ Two on-chip temperature sensors with 12 bit resolution ■ Single supply voltage ■ 32 Pin space saving CSP package ■ Chip size L x W x T: 8.0 x 1.3 x 0.23 mm Applications ■ Linear and rotary encoder ■ Triangulation light barrier / distance measurement ■ Line sensor / camera ■ Business card readers & portable scanners ■ Multi-touch displays / electronic whiteboards ■ Finger print readers ■ Spectrometers ■ Check & ticket readers ■ Speed measurement ■ Barcode readers Block diagram CCD 1024x1 Frame store 4 Frame store 2 Frame store 3 1024 : 1 MUX Logic I2C-Interface Analog output Configuration Inputs Configuration I2C-bus Frame store 1 Figure 1: Top-level block diagram of the epc901 IC Figure 2: Picture of the epc901 © 2016 ESPROS Photonics Corporation Characteristics subject to change without notice 1 / 37 Datasheet_epc901-V5.6 www.espros.com |
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