MT9V111：1/4英寸SOC VGA数字图像传感器规格

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"MT9V111是一款1/4英寸的系统级芯片（SOC）CMOS有源像素数字图像传感器，由Micron Technology制造。这款传感器以其数字清晰度（Digital Clarity）CMOS成像技术为特点，适用于需要低功耗、低成本解决方案的场合。MT9V111I29STC是该系列的一款具体型号，其在低光环境下的性能优越，能够提供高达30帧每秒（fps）的逐行扫描，分辨率可达VGA（640x480像素）级别，且工作时钟频率为27MHz，确保了高质量视频的输出。该传感器集成度极高，实现了系统-on-a-chip的设计，即整个相机系统都包含在这个单一芯片上。内置的图像流处理器（IFP）执行复杂的处理任务，如色彩恢复和校正、锐化、伽马校正、镜头阴影校正、实时缺陷修正以及2X固定变焦功能，极大地提升了图像质量和处理效率。 MT9V111的主要特性包括： 1. 数字清晰度CMOS成像技术：利用先进的CMOS工艺，提供更清晰、细节丰富的图像。 2. 系统级芯片设计：集成了所有必要的信号处理功能，减少了外部组件的需求，降低了系统成本和功耗。 3. 超低功耗：适合于电池供电或对能耗有严格要求的设备。 4. 优秀的低光照性能：在光线不足的环境下仍能捕捉到清晰的图像。 5. 高帧率：30fps的逐行扫描能力，适用于连续动态视频捕捉。 6. 图像流处理器（IFP）：强大的图像处理单元，可进行多种图像增强操作。 7. 实时缺陷校正：自动检测并修复像素缺陷，提高图像质量。 8. 变焦功能：提供2X固定变焦，增加了应用场景的灵活性。需要注意的是，Micron Technology保留更改产品或规格的权利，而不事先通知，实际产品的性能应以生产数据表的规格为准。产品仅保证符合Micron的生产数据表规格，并且产品和规格可能会根据Micron的决定进行更改。"

09005aef80e90084 Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9V111_2.fm - Rev. G 1/05 EN

MT9V111 - 1/4-Inch SOC VGA Digital Image Sensor

Ball Assignment

A5 DOUT6 Output

ITU_R BT.656/RGB data bit 6.

C3 D

OUT5 Output

ITU_R BT.656/RGB data bit 5.

A3 D

OUT4 Output

ITU_R BT.656/RGB data bit 4.

B3 D

OUT3 Output

ITU_R BT.656/RGB data bit 3.

A2 D

OUT2 Output

ITU_R BT.656/RGB data bit 2.

B1 D

OUT1 Output

ITU_R BT.656/RGB data bit 1.

C2 D

OUT0 Output

ITU_R BT.656/RGB data bit 0 (LSB).

A6,B2,B4,B

B7,C5,E5,F

DD Supply

Digital Power (2.8V).

G5,G6 V

AA Supply

Analog Power (2.8V).

F7 VAAPIX Supply

Pixel Array Power (2.8V).

F5,G7 A

GND Supply

Analog Ground.

A1,D1,A4,

A7,C7,D7,G

1,G4

GND Supply

Digital Ground.

C1,D2 NC



No connect.

Table 2: Ball Description (Continued)

Ball

Numbers Name Type Description

09005aef80e90084 Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9V111_2.fm - Rev. G 1/05 EN

MT9V111 - 1/4-Inch SOC VGA Digital Image Sensor

Image Flow Processor

Overview of Architecture

The image flow processor consists of a color processing pipeline and a measurement

and control logic block as shown in Figure 5. The stream of raw data from the sensor

enters the pipeline and undergoes a number of transformations. Image stream process-

ing starts from conditioning the black level and applying a digital gain. The lens shading

block compensates for signal loss caused by the lens. Next, the data is interpolated to

recover missing color components for each pixel and defective pixels are corrected. The

resulting interpolated RGB data passes through the current color correction matrix

(CCM), gamma, and saturation corrections and is formatted for final output.

The measurement and control logic continuously accumulates statistics about image

brightness and color. Indoor 50/60 Hz flicker is detected and automatically updated

when possible. Based on these measurements the IFP calculates updated values for

exposure time and sensor analog gains, which are sent to the sensor core via the com-

munication bus.

Color correction is achieved through linear transformation of the image with a 3 x 3

color correction matrix. Color saturation can be adjusted in the range from zero (black

and white) to 1.25 (125% of full color saturation).

Gamma correction compensates for non-linear dependence of the display device out-

put vs. driving signal (e.g. monitor brightness vs. CRT voltage).

Output and Formatting

Processed video can be output in the form of a standard ITU_R BT.656 or RGB stream.

ITU_R BT.656 (default) stream contains 4:2:2 data with optional embedded synchroni-

zation codes. This kind of output is typically suitable for subsequent display by standard

video equipment. For JPEG/MPEG compression, YUV/ encoding is suitable. RGB func-

tionality is provided to support LCD devices. The MT9V111 can be configured to output

16-bit RGB (RGB565), 15-bit RGB (RGB555) as well as two types of 12-bit RGB (RGB444).

The user can configure internal registers to swap odd and even bytes, chrominance

channels and luminance and chrominance components to facilitate interface to appli-

cation processors.

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