ASX340AT Datasheet, PDF (1/75 Pages) ON Semiconductor – Color CMOS NTSC/PAL Digital Image

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ASX340AT: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor
Features
1/4-Inch Color CMOS NTSC/PAL Digital Image
SOC with Overlay Processor
ASX340AT Datasheet, Rev. H
For the latest datasheet, please visit www.onsemi.com
Features
• Low-power CMOS image sensor with integrated
image flow processor (IFP) and video encoder
• 1/4-inch optical format, VGA resolution (640H x
480V )
• 2x upscaling zoom and pan control
• ±40 additional columns and ± 36 additional rows to
compensate for lens alignment tolerances
• Option to use single 2.8 V power supply with off-chip
bypass transistor
• Overlay generator for dynamic bitmap overlay
• Integrated video encoder for NTSC/PAL with overlay
capability and 10-bit I-DAC
• Integrated microcontroller for flexibility
• On-chip image flow processor performs
sophisticated processing, such as color recovery and
correction, sharpening, gamma, lens shading
correction, on-the-fly defect correction, auto white
balancing, and auto exposure
• Auto black-level calibration
• 10-bit, on-chip analog-to-digital converter (ADC)
• Internal master clock generated by on-chip phase-
locked loop (PLL)
• Two-wire serial programming interface
• Interface to low-cost EEPROM and Flash through SPI
bus
• High-level host command interface
• Stand-alone operation support
• Comprehensive tool support for overlay generation
and lens correction setup
• Development system with DevWare
Applications
• Automotive rear view camera and side mirror
• Blind spot and surround view
Table 1:
Key Parameters
Parameter
Pixel size
and type
Sensor clear pixels
NTSC output
PAL output
Optical area
(clear pixels)
Optical format
Frame rate
Sensor scan mode
Color filter array
Chief ray angle (CRA)
Shutter type
Automatic Functions
Programmable
Controls
Typical Value
5.6 m x 5.6 m active pinned-
photodiode with high-sensitivity
mode for low-light conditions
728H x 560V (includes VGA active
pixels, demosaic and lens alignment
pixels)
720H x 487V
720H x 576V
4.077 mm x 3.136 mm
¼-inch
50/60 fields/sec
Progressive scan
RGB standard Bayer
0°
Electronic rolling shutter (ERS)
Exposure, white balance, black level
offset correction, flicker detection and
avoidance, color saturation control,
on the-fly defect correction, aperture
correction
Exposure, white balance, horizontal
and vertical blanking, color,
sharpness, gamma correction, lens
shading correction, horizontal and
vertical image flip, zoom, windowing,
sampling rates, GPIO control
Key parameters are continued on next page.
See “New Features” on page 3.
See “Ordering Information” on page 3
ASX340AT/D Rev. H, 8/15 EN
1
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