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PDF PI3039 Data sheet ( Hoja de datos )
| Número de pieza | PI3039 | |
| Descripción | 600DPI CIS Image Sensor Chip | |
| Fabricantes | AMI SEMICONDUCTOR | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PI3039 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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™ Peripheral
Imaging
Corporation
PI3039
600DPI CIS Image Sensor Chip
Engineering Data Sheet
Description:
Peripheral Imaging Corporation PI3039 CIS (Contact Image Sensor) sensor chip is a linear
array image sensor chip with a 600 elements per inch resolution. The sensor chip is fabricated
with PIC’s proprietary CMOS Image Sensing Technology. Since this image sensor chip is
intended for CIS module applications, multiple numbers of these sensors will be serially
cascaded to form a linear scanning image array of arbitrary length. These sensors are butted
end-to-end on a printed circuit board (PCB). The sensors are mounted using the chip-on-
board technology to form scanning arrays with various lengths
8080 µm
1 2 3 4 ROW OF 192 SENSORS 189 190 191 192
AND VIDEO SIGNAL
LINE MULTIPLEXER
READ OUT SHIFT REGISTER
360 µm
BUFFER
SP
BUFFER
CP VDD
VSS
CHIP
SELECT
IOUT
BUFFER
EOS
Figure 1. PI3039 Sensor Block Diagram
Figure 1 is a block diagram of the sensor chip. Each sensor chip consists of 192 detector elements,
their associated multiplexing switches, buffer amplifiers, and a chip selector. The detector's element-
to-element spacing is approximately 42µm. The size of each chip without the scribe lines is 8080 µm
by 360 µm. Each sensor chip has 6 bonding pads. The pad symbols and functions are described in
Table 1.
Page 1 of 10, PI3039, 12/2/02
1 page  
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4) For fclk < 5.0 MHz, the clock duty cycle is typically 25 %. But at fclk = 5.0 MHz or
higher a typical of 50% is recommended. This is to keep the die-to-die FPN, fixed
pattern noise, to a minimum between die transitions in CIS operation.
5) Dty is the ratio of clock pulse width over the clock period.
6) Tint at the minimum integration time is specified with a maximum clock frequency of 6.5
MHz. This specification is for a single sensor. When multiple sensors are cascaded in
series, this minimum integration time increases with each additional number of sensors.
Switching Characteristics @ 25o C.
Since these image sensors are applied in multiple-length line array with a wide range in
scanning speeds, two types of output video amplifiers are used. Three video output circuits
are discussed under the section entitled, Output Circuits for Converting the Video Signal. But
there are only two basic types. One is current sensing amplifier and the other is charge
storing buffer amplifier. Simplified block diagrams show their interface connections with the
image sensors. They were also used to measure the specifications given in this data sheet.
The timing relationships among these two different video signals and the image sensor’s two
input clocks, its start pulse, SP, its shift register clock, CP, and its shift register output, EOS,
are shown in two diagrams, Figure 3A and its supplement, Figure 3B. The two timing
diagrams are accompanied with two tables of timing symbol’s specification. These symbols
graphically define the timing relationships among the waveforms in the timing diagrams, see
Figure 3A, Timing Diagram of the PI3039 Sensor. The switching specifications are given in
Table 6A, Timing Symbol’s Definition. Except for the analog video output, the rest are digital
clock waveforms. Their levels are +5 Volts CMOS compatible. The video signal, Iout, timing
is specified in Table 6A. Its amplitude was specified in Table 2, Electro-Optical
Characteristics.
CP (CLOCK)
to
tprh
tw
tonoff
SP (START)
IOUT (VIDEO
CURRENT PULSE)
tds
EOS (END OF
SCAN)
tdh terdl
tdtt
tdtp
FIRST
PIXEL
tefdl
LAST
PIXEL
Figure 3A. Timing Diagram of the PI3039 Sensor
(Uses Video Output Circuit in Figure 4B)
PAGE 5 OF 10, PI3039, 12/2/02
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet PI3039.PDF ] | |
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