MT9V125
1/4-Inch VGA CMOS Active-Pixel
Digital Image Sensor
Simple Designs with an All-in-One Imager for Automotive Applications
Automotive makers are incorporating cutting-edge fea-
tures for safety, security, and convenience in their car
and commercial vehicle designs—high-tech applications
that are driven by CMOS image sensors. Aptina, the rec-
ognized leader in the CMOS image sensor industry, oers
several high-speed, high-performance imagers designed
specically to meet the requirements of the demanding
automotive environment. In cars and commercial vehicles,
the MT9V125 can provide protection by enabling biometric
security and providing content theft identication. It can
increase drivers’ awareness of their surroundings by dis-
playing what’s happening next to the vehicle, behind it, or
in the back seat.
MT9V125 Applications
l Blind spot, parking assistance
l Rear-view, side-view video
l Passenger viewing
l Mirror replacement/assistance
l Vehicle and contents theft identication
l Biometric identication/security
l Accident reconstruction
Sophisticated but Simple
The MT9V125 incorporates sophisticated camera
functions on-chip and is programmable through
a simple two-wire serial interface. Its three dedi-
cated control pins, left/right image mirroring, and
LVDS on/o reduce the need for additional chips for
power setup. NTSC- and PAL-formatted outputs are
integrated on the device, and its exible signal path
supports a wide variety of system architectures.
Because the sensor does not require an encoder
chip for formatting, this lowers the bill of materials
(BOM) and dramatically reduces costs.
Dependable in Severe Conditions
Electronic components used in the automotive envi-
ronment need to perform under rigorous operating
conditions. Bright or dark, hot or cold, the MT9V125
can output full-color video at VGA-quality resolu-
tion (640H x 480V). In fact, the part excels under
extreme conditions, with an operating temperature
range of -40˚C to +105˚C and a minimum detectable
light level of <2.5 lux.
Specications
MT9V125
l Pixel Size: 5.6µm x 5.6µm
l Array Format
(Active): 640H x 480V
l Imaging Area: 3.584mm x 2.688mm
l Color Filter
Array: RGB Paired Bayer color lters
l Optical Format: 1/4-inch
l Frame Rate: 30 MHz
l Scan Mode: CCIR 656 interlaced
l Shutter: Electronic rolling shutter (ERS)
l Automatic Color recovery and correction,
Functions: sharpening, programmable
gamma correction, auto
black level oset correction,
auto exposure, white balance,
lens shading correction, and
icker avoidance
l Programmable Gain, frame rate, ADC reference,
Controls: left-right and top-bottom
image reversal
l ADC: 10 bit, on-chip
l Data Rate: 27 MHz
l Responsivity: 2 V/lux-sec (550nm)
l Data Output ITU_R BT .656 (YCBCR),
Formats: 565RGB, 555RGB, 444RGB,
Interlaced output
l Dynamic Range: >69dB
l Maximum
Analog Gain: 15.875
l Supply Voltage: 2.8V ±10%
l Power
Consumption: <300mW (@ 30 fps)
l Functioned
Temp. Range: -40°C to +85°C
l Operating
Temp. Range: -40°C to +105°C
l Storage
Temp. Range: -40°C to +125°C
l Package: 52-pin IBGA, 9mm x 9mm
MT9V125
1/4” Lens Analog
Video Out
CCIR 656
Video Out
8
Digital Serial
LVDS
Implementation Examples
Without Overlay With Overlay
Post DSP Processed
NTSC/PAL Video Out
Analog NTSC/PAL
MT9V125 DSP
For overlays
or smart cam
8
Parallel Digital
Video Out
8
8
Parallel CCIR 656
Digital Video In
mux
Digital Video
Out
A
B
C
D
ADigital video out to DSP
BPost-processed digital video
CThere is an on-chip mux between the image output or post-DSP
processed input, specically between the imager and video in
Post-processed NTSC/PAL video
D
1/4” Lens
MT9V125 Features and Benets
Features Benets
Pixel Size 5.6µm x 5.6µm Is formatted for a 1/4-inch lens, which is a standard format that
enables small camera designs.
Video Formats
NTSC/PAL (true two eld)
analog composite video output
ITU-R BT.656 parallel output (8-bit, interlaced)
Outputs to either NTSC or PAL format. The video output is formatted
directly on the chip to go directly to an NTSC or PAL input (display)
device. Because the sensor does not require an encoder chip, this low-
ers the bill of materials (BOM) and dramatically reduces costs.
Shutter Dual electronic rolling shutter (DERS)
Provides excellent video capture, especially in low-light conditions by
featuring 60Hz eld rates that have integration times as high as 33ms.
(Results were not achieved by running 60Hz frame rates and throwing
out every other line as others often do when reporting this.)
System-on-a-Chip Completely integrated camera system
Consists of a color processing pipeline, and a measurement and
control logic block (the camera controller). The block continuously ac-
cumulates image brightness and color statistics. The IFP automatically
adjusts exposure, white balance, black reference, icker avoidance,
color saturation, and defect identication and correction.
Frame
Rates
VGA: 30 fps
NTSC: 30 fps @ 27 MHz
PAL: 25 fps @ 27 MHz
Oers real-time frame rates at full resolution to match those of
automotive displays.
Digital Scan Mode CCIR 656 interlaced Captures high-quality video with progressive scan mode, which
outputs in standard color digital video format.
Data Formats Progressive or interlaced,
Parallel or LVDS (serial)
Oers a selectable output data format, providing exibility; supports
parallel or serial digital interlaced output formats (CCIR 656, YUV
4:2:2); and supports raw progressive or interlaced digital output. The
serial LVDS output mode signicantly reduces wire count.
Minimum
Detectable Light
<2.5 lux, color
Superior low-light performance
Performs extremely well under low-light conditions, making it ideal
for a wide range of automotive display applications.
Dynamic Range >70dB Features a dynamic range that exceeds that of automotive displays
for high-quality video in very light or very dark conditions.
Spectral
Range
450nm–1,050nm
>40% QE at 550nm
Detects a spectral range from deep blue (DB) to NIR, with a peak
response matching that of the human eye.
Three Dedicated
Control Pins
Left/right image mirroring
LVDS on/o Reduces the need for additional chips for power setup.
Package AECQ-100 qualied 52-ball IBGA
BGA: 0.5mm ball 1.0mm centers
Excels under extreme conditions with automotive-qualied IBGA
package.
Temperature
Ranges
Operating: -40˚C to +105˚C
Storage: -40˚C to +125˚C
Withstands extreme temperatures, providing dependable operation
under severe conditions.
Programmable
Controls
Gamma, exposure, gain, windowing, frame rate,
ADC reference, left-right and top-bottom image
reversal
Enables a camera with the same bill of material (BOM) to be used in
both forward- and rear-looking systems through image reversal. The
user can program the size of a region for downsizing.
Programming
Capability Two-wire serial programming interface Incorporates sophisticated camera functions on-chip and is program-
mable through a simple two-wire serial interface.
MT9V125
Digital Video Input Post-processed video and overlay support
Enables the customer to feed the post-processed video (lens correction
and static or dynamic overlays) back into the imager to use the on-chip
DAC and NTSC encoder. Reduces BOM and cost and increases reliability.
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05/04/11 EN.