Frame Transfer Full-Color Ccd Sensors ⋯⋯⋯⋯⋯⋯⋯12 - Sanyo EP92H Brochure

High image quality, ultraminiature size, and low power makes these devices optimal for
use in cell phones
Frame Transfer Full-Color CCD Sensors
Frame Transfer CCD
Achieves the industry's smallest optical size class by using the frame transfer CCD, which makes it possible to reduce
feature sizes while maintaining sensitivity.
Sensitivity was increased by adopting a simple single-layer gate gap structure and thin-film polysilicon.
FT-CCD
Device Density Comparison
Comparison of chip
PD
sizes required to
Low voltage
=Transfer
area
acquire the same
imaging device area
Imaging area
Storage area
High sensitivity
output
Horizontal shift register
[storage 1/3 compression Type]
Cross Section Comparison
The FT CCD method uses
no elements that block the
entrance of light, and thus
they can capture light from
a wider range of incidence
angles.
Micro Lens
Photo Diode
Reducing the device
height is possible
Comparison of Differences in Electronic Shutter Types
CCD sensor
In the 1.0-MP CCD, SANYO developed a new charge accumulation method.
Newly developed
Low moire, high sensitivity, and a high frame rate achieved by pixel addition during preview and spatial
filter processing.
Imaging area
High sensitivity
Mixing area
Storage area
Low moire
Horizontal transfer
FT-CCD structure
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CMOS
High voltage
Imaging area
output
Horizontal shift register
Micro Lens
Photo Diode
CMOS sensor (1/4 VGA)
Imaging area
Compressed to 1/3 the number of lines by combining 3 pixels.
Mixing area
R+2G 2B+G
Storage area
2R+G B+2G
R, G, and B are extracted by calculations
SANYO fabricates frame transfer (FT) CCD sensors using unique technologies with ultrafine design rules and provides them as
modules assembled using advanced leading-edge mounting technologies.
SANYO makes a point of providing fine and delicate semiconductor devices in forms that our customers will find approachable
and easy to use.
CCD drive circuit and image processing implemented in a single package
Multifunction DSP chip
A charge pump type voltage step-up circuit that features minimal noise generation, and the supply voltages required for
system drive are generated efficiently with just the supply of a single +2.9 V power supply. This design is also effective at
achieving reduced power consumption.
SANYO implemented, in a single package, the timing generator circuit required for system drive and all the analog and
IL-CCD
digital processing required to accept the CCD output by taking advantage of the SANYO CMOS analog/digital hybrid
process and MCP (multi-chip package) technologies.
PD
Low voltage
Amplifier
Roadmap
X direction register
PD: Photo Diode
Micro Lens
P+ N+ N+ P+ N+ N+
Photo Diode
P-Sub
CCD Module Basic Structure Example
CCD module
Horizontal shift
register
2004
LC99353 LC99359
Megapixel
CCD chipset
LC99810 1.0M LC99812
LC99268 LC99268G
30 fps
VGA CCD
chipset
LC99808 LC99268FL
LC99809
CIF CCD LC99267
chipset
LC99807
LC99117
Near infrared
Near infrared
CCD chipset
LC99704
Resolution Sensitivity
Chip Set Color/B&W
Still Motion Still
LC99359 Color 3.2M VGA Low
LC99268FL Color VGA VGA High
LC99117 B&W CIF CIF Very High
CLK
Multifunction DSP
Charge pump
Power supply circuit
Imaging area
Storage area
CCD timing generator
CCD driver
Output
Correlated double 8-bit
amplifier AGC
sampling ADC
Analog front end processor
2005 2006
High image quality
Dynamic range of
VGA motion picture
and 3.2-MP still picture
3.2M
has expanded
High reliability
Inproved stability
at high-temperature
(85 C)
Coexistance
between
near infrared
sensitivity and
color
Dynamic Range Frame Rate Output
Motion Motion Motion
Motion
High Normal 30 Digital
Wide 15 Digital
Wide 30 Digital
+2.9 V
Single power supply
Registers for picture arrangement
I 2 C bus
/Output mode/etc.
AE/AWB controller
RGB/YUV output
Digital color signal processor
HREF/VREF
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