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HM1245
Home / Products / CMOS Image Sensor / Automotive Sensors / HM1245
HM1245
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HM1245 UltraSense™ CIS SOC

1280 x 960 ▪ 1/3.7″ ▪ 30fps YUV, 60fps RAW BSI ▪ Automotive Package ▪ OSD, Up-Scaling

The HM1245 is a compact, automotive Megapixel CMOS Image Sensor SOC designed for automotive camera viewing applications. The sensor employs Himax Imaging’s advanced UltraSenseTM BSI pixel technology that significantly improves angular response, blooming performance, and low light sensitivity by offering more than 30% higher quantum efficiency compared with Front Side Illuminated pixel.

The HM1245 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 HM1245 operates up to 30 Frames Per Second (FPS) in YCbCr/RGB data format, 30 FPS in 12bit RAW data format, and 60 FPS in 10bit RAW data format over a parallel data interface. All registers can be programmed using I2C interface. The sensor is offered in an ultra-compact automotive grade Chip Scale Package and rated for – 40°C to 105°C operation.

Features
  • Low power, compact, 1/3.7″ automotive Megapixel sensor
  • High performance UltraSenseTM BSI pixel technology
  • 1280 x 960 active pixel array operating up to 60 FPS in 10bit RAW mode, 30FPS in 12bit RAW mode, and 30FPS in 8b YCbCr mode
  • Flexible horizontal and vertical window readout supports lens alignment panning within 1416 x 976 effective resolution
  • High quality ISP with automatic exposure, gain, white balance, and image quality optimization control loops that adjusts ISP based on temperature, lowlight and high contrast conditions
  • On-chip OTP memory with internal charge pump
  • OTP, SPI or I2C memory support for sensor boot
  • SPI and I2C memory programming through SIave I2C
  • Temperature sensor from -50°C to 150°C
  • Dynamic overlay engine simultaneously displays two independent image layers up to 8KB
  • Window and up-scalar function
  • External frame (FSIN) and 3D synchronization
  • Functional check for interface, logic and memory integrity
  • Brown-out detection for supply and temperature
  • Embedded data for register status, error flag, temperature value, and frame count
  • Automotive CSP designed for AEC-Q100 Grade 2 requirements

himax

Sensor Parameters
Pixel Array (Full / Active) 1416 x 976 / 1280 x 960
Pixel Size 3.0µm x 3.0µm
Sensor Diagonal (format) 4.8mm (1/3.7″)
Shutter Type Progressive scan
Max. Frame Rate
30 fps , 1280 x 960, YUV
60 fps , 1280 x 960, RAW10
30 fps , 1280 x 960, RAW12
SNR max. including PRNU 38dB
PRNU <1%
Sensitivity/td> 4.6 V / Lux – sec
Dynamic Range (1x / 16x gain) TBD
Chief Ray Angle max. 25º
General Specifications
Output Format
YUV422 (ITU601)
RGB 565 / 555 / 444,
RAW10 / 12
Video Data Interface 12-bit parallel with SYNC
Input Reference Frequency 6 – 27MHz, 27MHz crystal
Max. Output Clock Frequency 96MHz
Serial Interface Max. Frequency I2C Slave
Serial Interface Max. Frequency I2C Master
Serial Interface Max. Frequency SPI
1MHz
1MHz
48MHz
Supply Voltage AVDD
Supply Voltage DVDD
Supply Voltage IOVDD
3.3 V
1.5 V (1.8V LDO)
1.7 – 3.6V
Power Consumption Active (YUV30)
Power Consumption Active (RAW60)
Power Consumption STBY
Power Consumption STOP
TBD
TBD
TBD
TBD
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