OV7675 – 0.3 MP Camera Module:
The OV7675 – 0.3 MP Camera Module is based on the OV7675 color sensor from OmniVision.
The sensor has a 1/9.0″ optical format, which combined with the pixel size of 2.5 µm x 2.5 µm, results in the 0.3 MP 640 x 480 VGA image. This is a rolling shutter sensor, which captures an entire column (or row) simultaneously, and compiles the image by scanning across (or down). The lens and/or sensor have an IR-cut filter, so this module is not appropriate for low-light photography. This module does not have a lens mount, but relies on the optics supplied with the sensor.
Use this camera module on a Windows, Linux, or Raspberry Pi USB connection with the ArduCAM USB Camera Shield on the primary interface (a 20-pin 0.1″ / 2.54 mm pitch interface) or your custom-built interface. ArduCAM supplies a wide variety of camera modules that are compatible with the USB Camera Shield, and all are available from DLSCorp.
OmniVision CAMERACHIP™ image sensors are low voltage CMOS devices that provide the full functionality of a single-chip camera and image processor in a small footprint package. They provides full-frame, sub-sampled, scaled or windowed 8-bit/10-bit images in a wide range of formats, controlled through the Serial Camera Control Bus (SCCB) interface. All required image processing functions, including exposure control, gamma, white balance, color saturation, hue control, white pixel canceling, noise canceling, and more, are also programmable through the SCCB interface. A compression engine provides for increased processing power. In addition, OmniVision CAMERACHIP sensors use proprietary sensor technology to improve image quality by reducing or eliminating common lighting/electrical sources of image contamination, such as fixed pattern noise, smearing, etc., to produce a clean, fully stable color image.
- active array size: 640×480
- power supply:
analog: 2.6 ~ 3.0V
core: 1.5V DC + 5% (internal regulator)
I/O: 1.71 ~ 3.0V
- power requirements:
active: 98 mW
standby: 60 μW
- temperature range:
operating: -30°C to 70°C (see table 8-2)
stable image: 0°C to 50°C (see table 8-2)
- output formats: YUV422, Raw RGB, ITU656, RGB565
- lens size: 1/9″
- input clock frequency: 1.5 ~ 27 MHz
- scan mode: progressive
- maximum image transfer rate: VGA 30fps, QVGA 60fps, QQVGA 240pfs
- sensitivity: 1800 mV/(Lux-sec)
- shutter: rolling shutter
- S/N ratio: 38 dB
- dynamic range: 71 dB
- maximum exposure interval: 510 x tROW
- pixel size: 2.5 μm x 2.5 μm
- image area: 1640 μm x 1220 μm