1.3 BIONZ – Sony CXD4132 ISP + CXD90016GF SoC.
1 History of BIONZ chips in Sony cameras.The ISP can be identified by the part number "CXD4xxx". It handles the data directly from the CMOS image sensor, and it is directly responsible for the camera's high-ISO noise characteristics in a low-light environment. The second chip is the ISP (image signal processor). The BIONZ SoC can be identified by its part number "CXD900xx". The first chip is an SoC that manages overall functionality of the camera such as SD card storage management, wired connection such as USB and HDMI, and wireless protocols such as Wi-Fi and NFC that are increasingly common on modern Sony α cameras. Sony also sources DRAM chips from various manufacturers namely Samsung, SK Hynix and Micron Technology.īIONZ utilizes two chips in its design. Sony designs the circuitry of the processor in-house, and outsources the manufacturing to semiconductor foundries such as MegaChips and (mostly) GlobalFoundries, as they currently do not own any fabrication plant capable of producing a system on a chip (SoC). This processing is one of the bottlenecks in digital camera speed, so manufacturers put much effort into making, and marketing, the fastest processors for this step that they can. Image processing in the camera converts the raw data from a CCD or CMOS image sensor into the format that is stored on the memory card. It is currently used in many Sony α DSLR and mirrorless cameras. BIONZ is a line of image processors used in Sony digital cameras.