HM1246 UltraSense™ BSI SOC

1280 x 960 1/3.7″ Integrated ISP with OSD & Zoom 30fps YUV, 60fps RAW High Temperature Operation

The HM1246-AWC is a highly integrated and compact CMOS Image Sensor (CIS) System-on-Chip (SOC) with an active pixel resolution of 1296(H) x 976(V). The sensor uses Himax Imaging’s UltraSenseTM Back Side Illuminated (BSI) pixel technology that significantly improves angular response, blooming characteristics, and low light sensitivity offering 30% higher quantum efficiency compared with Front Side Illuminated pixel.

The HM1246-AWC integrates a high quality Image Signal Processor (ISP) with Automatic Gain / Exposure and Automatic White Balance control loop. The ISP supports RAW processing for black level correction, lens shade compensation, defect correction and noise filtering; and a full RGB / YUV color processing pipeline for demosaicing, color correction, gamma correction, sharpening, green channel mismatch and luma / chroma noise reduction.

The HM1246-AWC supports multiple sensor initialization options using internal One Time Programmable (OTP) memory and external Serial Peripheral Interface (SPI) or I2C memory. An in-sensor programming mode allows the SPI memory to be programmed through the I2C interface. The sensor offers a high level of integration including multiple camera synchronization, On Screen Display (OSD), video up scalar, temperature sensor, clock oscillator, fast locking clock generator, and embedded data detailing select sensor registers, AE/AWB statistics, and status information.

The HM1246-AWC operates up to 30 frames per second in YCbCr / RGB data format, and up to 60 frames per second in 10-bit RAW data format over a parallel data interface with video line and frame sync output. All sensor registers can be programmed using I2C interface. The sensor is offered in an ultra-compact Chip Scale Package and is rated for an ambient temperature of -40°C to 105°C operation.

特色

• Low power Megapixel image sensor
• UltraSense™ BSI pixel technology
• 1280 x 960 active pixel array operating up to 60FPS in 10-bit RAW mode, and 30FPS in 8-bit YCbCr mode
• Flexible horizontal and vertical window readout
• High quality ISP with automatic exposure, gain, white balance, and image quality optimization control loop
• On-chip 3Kb OTP memory with internal charge pump
• OTP, SPI or I2C memory support for sensor boot
• SPI and I2C memory programming through SIave I2C
• Embedded temperature sensor
• Dynamic overlay engine simultaneously displays two independent image layers up to 8KB
• Window and up-scalar function for digital zoom
• External frame (FSIN) synchronization
• Embedded data for register status, error flag, temperature value, and frame count
• Brown-out detection for supply and temperature
• Interface, logic and memory check
• LED and Iris support

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