EPC901 Datasheet, PDF (1/37 Pages) Espros Photonics corp – CCD line sensor 1024x1 pixel

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.
Block diagram
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
Configuration
Inputs
Logic
Configuration
I²C-bus
I²C-Interface
CCD 1024x1
Frame store 1
Frame store 2
Frame store 3
Frame store 4
1024 : 1 MUX
Figure 1: Top-level block diagram of the epc901 IC
Analog output
© 2016 ESPROS Photonics Corporation
Characteristics subject to change without notice
Figure 2: Picture of the epc901
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Datasheet_epc901-V5.6
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