Conexant Systems, Inc. CNXT has unveiled a new video encoder for residential ‘smart home’ and commercial security applications.
The low-power CX93510 video encoder enables the capture and recording of video simultaneously, and is targeted at products including:
- Motion sensors with low-cost passive infrared (PIR) technology
- Baby monitors
- IP network cameras
In full power the CX93510 video encoder operates at 12 milliamperes (mA) and at 10 nanoamps (nA) in sleep mode, maximizing battery life. This can be an important feature to alarm companies who may target two-to-five years of system operation before battery replacement is required. Additionally, low-power video encoder systems generate less heat, which is a key consideration for embedded applications such as intercoms installed in a wall and alarm systems located in areas with poor ventilation.
The new video encoder includes support for PIR technology used in motion sensors to detect changes in temperature caused by infrared sources of energy, for example, a person entering a room. When this occurs, the motion sensor triggers the image-capture portion of the security system, which then begins visually recording the event.
Additional features include industry-standard motion JPEG (MJPEG) compression and Conexant’s proprietary differential encoding technology, which is used to compress multiple image frames but only encode the difference between pre-determined reference frames. The amount of bandwidth and time required to transmit video files is dramatically reduced with this approach. It also allows the CX93510 video encoder to be used in baby monitors and intercom applications that typically use more expensive H.264 video compression.
The CX93510 video encoder supports popular host interface options including:
- Serial peripheral interface (SPI)
- Inter-integrated circuit (I2C)
- Universal asynchronous receiver/transmit (UART)
Conexant also offers video encoders and media bridges for surveillance and security products with digital video recording capabilities.
The CX93510 video encoder is available in a compact 6mm x 6mm 48-pin quad flat no-lead (QFN) package.
Conexant CX93510 video encoder is available from Caelera .