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AS0260 Datasheet(PDF) 7 Page - ON Semiconductor |
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AS0260 Datasheet(HTML) 7 Page - ON Semiconductor |
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7 / 83 page  AS0260 DS Rev. G Pub. 5/15 EN 7 ©Semiconductor Components Industries, LLC, 2015. AS0260: 1/6-Inch 1080P High-Definition (HD) System-On-A-Chip (SOC) Digi- tal Image Sensor Sensor Core The AS0260 has a color image sensor with a Bayer color filter arrangement and a 2.0Mp active-pixel array with electronic rolling shutter (ERS). The sensor core readout is 10 bits and can be flipped and/or mirrored. Image Flow Processor (IFP) The advanced IFP features and flexible programmability of the AS0260 can enhance and optimize the image sensor performance. Built-in optimization algorithms enable the AS0260 to operate with factory settings as a fully automatic and highly adaptable system-on-a-chip (SOC) for most camera systems. These algorithms include black level conditioning, shading correction, defect correc- tion, color interpolation, edge detection, color correction, aperture correction, hue rota- tion, perspective correction, and image formatting with cropping and scaling. The IFP includes special modes to support presence detection and ambient light measurement. These modes can be used to assist the power management of a notebook PC. Microcontroller Unit (MCU) The MCU communicates with all functional blocks by way of an internal ON Semicon- ductor proprietary bus interface. The MCU firmware configures all the registers in the sensor core and IFP. System Control The AS0260 has a phase-locked loop (PLL) oscillator that can generate the internal sensor clock from the common system clock. The PLL adjusts the incoming clock frequency up, allowing the AS0260 to run at almost any desired resolution and frame rate within the sensor’s capabilities. The AS0260 provides power-conserving features including a soft standby mode. A two- wire serial interface bus enables read and write access to the AS0260’s internal registers and variables. The internal registers control the sensor core, the color pipeline flow, and the output interface. Variables are located in the microcontroller's RAM memory and are used to configure and control the auto-algorithms and camera control functions. Output Interface The output interface block can select either raw data or processed data. Image data is provided to the host system either by an 8-bit parallel port or by a dual-lane serial MIPI port. The parallel output port provides 8-bit RGB data or extended 10-bit Bayer data. The AS0260 also includes programmable I/O slew rate to minimize EMI. System Interfaces Figure 2 on page 3 shows typical AS0260 device connections. For low-noise operation, the AS0260 requires separate power supplies for analog and digital sections of the die. Both power supply rails must be decoupled from ground using capacitors as close as possible to the die. The use of inductance filters is not recommended on the power supplies or output signals. The AS0260 provides dedicated inputs for digital core, PHY, and I/O power domains that can be at different voltages. The PLL and analog circuitry require clean power sources. Table 1 on page 4 provides the signal descriptions for the AS0260. |
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