IA6008-FA22A Datasheet PDF - Rohm

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IA6008-FA22A
Rohm

Part Number IA6008-FA22A
Description Color image sensor heads
Page 5 Pages


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Contact image sensor heads
IA6008-FA22A
Color image sensor heads for multi-function
IA6008-FA22A
“Color contact image sensor” with optical system intended for Flatbed scanning. Optical technology established for
sheet-feed scanning has been further advanced for Flatbed scanning.
zApplications
Image sensor heads device for multiple function facsimiles such as color scanner and multiple function printer.
zFeatures
1) Signal amplifier is built in to the image sensor IC in order to increase immunity to external noise.
2) Additionally, newly developed analog memory circuit and realizes high speed scanning.
3) The LED light source is mounted on the same substrate as the sensor chip which makes it possible to package the
device with lighter weight and an extremely small size.
4) With the proprietary prism, the output signal is maintained uniformly.
5) The ceramic substrate is used for excellent dimensional accuracy and thermal stability.
zExternal dimensions (Unit : mm)
2−φ 1.5x2
Oval Hole D4MIN
Scanning line
2−φ 1.5 D4MIN
+
236± 0.5
212 (Effective Reading Width)
Effective 1st bit
11.9± 0.8
+
9.4
0.524± 0.1
Dimension of frame
reference surface level.
MAX 2.35
1mm pitch 12pin
Pin No.
No.1
No.2
No.3
No.4
No.5
No.6
Signal
Ao
GND
GND
VDD
GND
SP
Pin No.
No.7
No.8
No.9
No.10
No.11
No.12
Signal
CLK
V-LED
B-GND
G-GND
R-GND
F-GND
No.12 No.1
Center of FCC
13.8
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Contact image sensor heads
zCharacteristics
Parameter
Symbol
Typ.
Effective scanning width
212
Primary scan dot density 600
Total dot number
5160
Power supply voltage
VDD 5
Scanning speed
SLT 6.6
Clock frequency
CLK
1.25
Maximum dynamic range
VRmax
0.5
Minimum dynamic range
VRmim.
0.25
Dark output
Vod 1.73 +− 0.45
Operating temperature
5 to 45
Analog signals are output at the double rate of clock frequency.
Unit
mm
dpi
dots
V
ms / line
MHz
V
V
V
°C
zPin assignments
No. Circuit
1 AO
2 GND
3 GND
4 VDD
5 GND
6 SP
7 CLK
8 V-LED
9 B-GND
10 G-GND
11 R-GND
12 F-GND
I / O Function
O Analog output
I Ground
I Ground
I Power supply
I Ground
I Start pulse
I Clock
I LED power supply
I BLUE LED ground
I GREEN LED ground
I RED LED ground
I Frame ground
IA6008-FA22A
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Contact image sensor heads
zTiming chart
(a) CLK Timing Chart
CLK
1/fCLK
twCLK twCLK
tSETUP
SP
tHOLD
IA6008-FA22A
ts
Ao
1pixel
2pixel
(b) Data Output Timing Chart
After turning on the SP pulse, the analog output starts from the setting up point of 27 clock pulse.
CLK
123
26 27 28 29
SP
Ao
Note) The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output standard level.
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Contact image sensor heads
zEquivalent circuit
VDD
GND
1µF×2
1
SP
ANALOG MEMORY CIRCUIT
CLK
AO
VLED
IA6008-FA22A
5160
680ohm
1µF
360ohm
VDD
VREF
RGND
GGND
BGND
F-GND
4/4



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