TI's automotive 1.3M camera module TIDA-00421 reference design uses the image sensor OV10640 and FPD-Link III serializer DS90UB913A and step-down converter TPS62170-Q1. Supports 1280x1080, VGA, QVGA and any zoom size, with high Dynamic range, high sensitivity and safety features, and low power consumption. Mainly used in ADAS vision system, look around system and rear camera lens. This article describes the main features of the OV10640, block diagram, and car 1.3M camera module TIDA-00421 reference Design main features, block diagrams, schematics, bill of materials and PCB design drawings.
The OV10640 is the automoTIve industry's first image sensor to utilize backside illumination technology, industry-leading sensitivity and high dynamic range (HDR) up to 120 dB in the smallest possible automotive-grade package. The OV10640 is well suited for a broad range of Advanced driver assistance systems (ADAS), including: 360-degree surround view, rear view, machine vision, blind spot detection, and lane departure warning.
The sensor's 4.2-micron OmniBSITM pixel is capable of recording highly detailed full-resolution 1.3-megapixel images and video at 60 frames per second (fps). The sensor uses OmniVision's unique split pixel HDR technology, in which the scene information is sampled at the same time. Rather than consecutive, minimizing motion artifacts and delivering superior image quality in RAW output in the most demanding and difficult lighting conditions.
The OV10640 contains a well-defined feature set to fulfill Automotive Safety Integrity Level (ASIL) according to ISO26262. The sensor fits into a compact chip-scale package (CSP), and is expected to complete AEC-Q100 Grade-2 qualifications
OV10640 main features:
Support for image size: 1280x1080,VGA, QVGA and any cropped size
High dynamic range
High sensitivity
Safety features
Low power consumption
Image sensor processor functions:
- automatic exposure/gain control
- lens correction
- defective pixel cancelation
- HDR combination and tone mapping
- automatic black level correctionsupported output formats: RAWhorizontal and vertical sub-samplingserial camera control bus (SCCB) for register programminghigh speed serial data transferwith MIPI CSI-2external frame synchronizationcapability
Parallel 12-bit DVP output
Embedded temperature sensor
One time programmable (OTP)memory
Product Specifications
Active array size: 1280 x 1080
Power supply:
- analog: 3.14 ~ 3.47V
- digital: 1.425 ~ 1.575V
- DOVDD: 1.7 ~ 1.9V
- AVDD: 1.7 ~ 1.9V
Power requirements:
- active: 250 mW
- standby: 100 μW
Temperature range:
- operating: -40°C to +105°C sensor
Ambient temperature and -40°C to +125°C junction temperature
Output interfaces: 12-bit DVP,
MIPI/LVDS CSI-2
Output formats:
- 20-bit combined RAW
- 12-bit compressed combined RAW
- separated 12-bit RAW
- 2x12-bit compressed RAW
- 16-bit log domain combined RAW
- 3x12-bit uncompressed RAW
Lens size: 1/2.56"
Lens chief ray angle: 9°
Input clock frequency: 6 ~ 27 MHz
Maximum image transfer rate:
- full resolution: 60 fps
Scan mode: progressive mode: progressive mode
Shutter: rolling shutter
Dynamic range: 120 dB
Pixel size: 4.2 μm x 4.2 μm
Image area: 5410 μm x 4570 μm
Package dimensions:
- aCSP: 7430 μm x 7190 μm
Figure 1. OV10640 block diagram
Automotive 1.3M Camera Module TIDA-00421 Reference Design Using OV10640, DS90UB913A
This camera design demonstrates a very small solution size for 1.3 Megapixel automotive cameras. Only a single coax connection is required to provide digital video, power, camera control and diagnostics. Output video format is 10-bit up to 100MHz or 12-bit up to 75MHz.
Figure 2. Outline of the 1.3M camera module
Automotive 1.3M camera module main features:
Size optimized design fits on a single PCB 20x20 mm
Power supply optimized for small size and low noise
Diagnostic and Built In Self Test (BIST)
Single Rosenberger Fakracoax connector for digital video, power, control and diagnostics
1.3 Mpixel HDR image sensor OV10640 from OmniVision providing 12bit raw image data
Includes installation tab for attachment directly to tripod
Power over Coax input can range from 4V to 17V
The main application of automotive 1.3M camera module:
• ADAS Vision Systems
• Surround View Systems
• Rear Camera
Figure 3. Block diagram of a 1.3M camera module reference design for automotive
Figure 4. Automotive 1.3M camera module reference design circuit diagram: serializer
Figure 5. Automotive 1.3M camera module reference design circuit diagram: coaxial connection and power supply
Figure 6. Automotive 1.3M camera module reference design circuit diagram: Image Automotive 1.3M camera module reference design material list:
Figure 7. Automotive 1.3M camera module reference design PCB front and back outline drawing
Figure 8. Automotive 1.3M Camera Module Reference Design PCB Design (1)
Figure 9. Automotive 1.3M Camera Module Reference Design PCB Design (2)
Figure 10. Automotive 1.3M Camera Module Reference Design PCB Design (3)
Figure 11. Automotive 1.3M Camera Module Reference Design PCB Design (4)
Figure 12. Automotive 1.3M Camera Module Reference Design PCB Design (5)
Figure 13. Automotive 1.3M Camera Module Reference Design PCB Design (6)
Figure 14. Automotive 1.3M Camera Module Reference Design PCB Design (7)
Figure 15. Automotive 1.3M Camera Module Reference Design PCB Design (8)
Double Twisting Machine
Application:
The high speed machines mainly used for stranding copper wire, aluminum wire, steel wire, ACSR and wire rope. Accompanied with taping head, it can used for insulation cores and some control cable stranding process.
Component:
Central pay-off, cage host, taping device(optional), capstan, take-up and traverse device and electric control system.
Main Character:
1.The machine can work steadily with the whole holder, and the protect cover adopts high grade seamless steel tube, so the structure is also steady with lower noises.
2.The timing power can be manipulated easily to adjust the speed .The protect cover has the right and reverse direction circumrotate.
3. The main machine and the haul-off unit adopt shift gears case, so the working intensity is lower and the pitch is exact.
4. Equipped with automatic parking equipment -the safeguard, it means the machine will stop when the thread runs out or the door is open.
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