MT9M003C12STC Aptina 1/4.5-Inch 1.6Mp CRA9.4° 1440H x 1080V CMOS Digital Image Sensor工业相机图像传感器
2021-09-28 20:08:29
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Features
● DigitalClarity ® CMOS imaging technology
● Maximum frame rate (1284H x 812V/60 fps at 99MHz)
● Superior low-light performance
● Low dark current
● Global reset release (GRR), which starts the exposure of all rows simultaneously
● Simple two-wire serial interface
● Programmable controls: gain, frame rate, frame size, exposure
● Horizontal and vertical mirror image
● Automatic black level calibration
● On-chip phase-locked loop (PLL) oscillator
● Bulb exposure mode for arbitrary exposure times
● Snapshot mode to take frames on demand
● Parallel data output
● Electronic rolling shutter (ERS), progressive scan
● Programmable power-down mode (mode A or mode B)
● Xenon and LED flash support with fast exposure adaptation
● Flexible support for mechanical shutter
Applications
● 720p high-definition digital video camcorder
● Solid state (flash) pocket DVC
● Digital still cameras
● PC cameras
● Cellular phones
General Description
The Aptina MT9M003 is a 1/4.5-inch format CMOS active-pixel digital image sensor with a pixel array of 1472H x 1096V. The default active imaging array size is 1440 x 1080. It incorporates sophisticated on-chip camera functions such as windowing, mirroring, and snapshot mode. It is programmable through a simple two-wire serial interface and has very low power consumption.
The MT9M003 digital image sensor features DigitalClarity—Aptina’s breakthrough lownoise CMOS imaging technology that achieves near-CCD image quality (based on signal-to-noise ratio and low-light sensitivity) while maintaining the inherent size, cost, and integration advantages of CMOS.
Functional Overview
The MT9M003 is a progressive-scan sensor that generates a stream of pixel data at a constant frame rate. It uses an on-chip, phase-locked loop (PLL) to generate all internal clocks from a single master input clock running between 8 and 16.5MHz. User interaction with the sensor is through the two-wire serial bus, which communicates with the array control, analog signal chain, and digital signal chain. The core of the sensor is a 1.6Mp active-pixel array. The timing and control circuitry sequences through the rows of the array, resetting and then reading each row in turn. In the time interval between resetting a row and reading that row, the pixels in the row integrate incident light.
The exposure is controlled by varying the time interval between reset and readout. Once a row has been read, the data from the columns is sequenced through an analog signal chain (providing offset correction and gain), and then through an ADC. The output from the ADC is a 12-bit value for each pixel in the array. The ADC output passes through a digital processing signal chain (which provides further data path corrections and applies digital gain). The pixel data are output at a rate of up to 99 Mp/s, in addition to frame and line synchronization signals in parallel mode corresponding to a pixel clock rate of 99 MHz. Figure 1 shows the block diagram of the sensor.
特性
● DigitalClarity®CMOS成像技术
● 最大帧率(1284H x 812V/60 fps, 99MHz)
● 优越的弱光性能
● 暗电流低
● 全局复位释放(GRR)，启动所有行同时曝光
● 简单的两线串行接口
● 可编程控制:增益，帧速率，帧大小，曝光
● 水平和垂直镜像
● 自动黑色液位校准
● 片内锁相环振荡器
● 灯泡曝光模式，可任意曝光次数
● 快照模式，按需拍摄
● 并行数据输出
● 电子卷帘(ERS)，渐进式扫描
● 可编程关机模式(模式A或模式B)
● 氙气和LED闪光灯支持，快速曝光适应
● 机械卷帘柔性支架
应用
● 720p高清数码摄像机
● 固态(flash)袖珍DVC
● 数码相机
● 电脑摄像头
● 手机
一般的描述
Aptina MT9M003是一款1/4.5英寸CMOS有源像素数字图像传感器，像素阵列为1472H x 1096V。 默认的主动成像阵列尺寸为1440 x 1080。 它集成了复杂的片上摄像头功能，如窗口、镜像和快照模式。 它是通过一个简单的两线串行接口可编程，具有非常低的功耗。
MT9M003数字图像传感器采用DigitalClarity-Aptina突破性的低噪声CMOS成像技术，实现了接近ccd的图像质量(基于信噪比和低光灵敏度)，同时保持了CMOS固有的尺寸、成本和集成优势。
功能概述
MT9M003C12STC是一种逐进扫描传感器，以恒定的帧率生成像素数据流。 它使用片上，锁相环(PLL)产生所有内部时钟从一个主输入时钟运行在8和16.5MHz。 用户与传感器的交互是通过两线串行总线，它与阵列控制、模拟信号链和数字信号链进行通信。 传感器的核心是一个160万像素的活动像素阵列。 时序和控制电路依次通过阵列的行，重新设置，然后依次读取每一行。 在重置一行和读取该行之间的时间间隔内，该行中的像素对入射光进行积分。
曝光通过改变复位和读出之间的时间间隔来控制。 一旦读取了一行，列中的数据将通过模拟信号链(提供偏移校正和增益)进行排序，然后通过ADC。 ADC的输出是数组中每个像素的12位值。 ADC输出通过一个数字处理信号链(提供进一步的数据路径校正并应用数字增益)。 像素数据以高达99mp /s的速率输出，此外还以与99mhz的像素时钟速率相对应的并行模式输出帧和线同步信号。 图1给出了传感器的框图。
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