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From Wikipedia, the free encyclopedia

BIONZ is an image processor used in Sony digital cameras.

It is currently used in many of Sony α DSLRs and mirrorless cameras. Image processing in the camera converts the raw image data from a CCD or CMOS image sensor into the format that is stored on the memory card. 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.

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 System on a chip[1]. Sony also sources DRAM chips from various manufacturers namely Samsung, SK Hynix and Micron Technology.

BIONZ utilizes two chips in its design; First chip is a SoC (System-on-a-chip) 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. BIONZ SoC can be identified with part number "CXD900xx". Second chip is a ISP (image signal processor). It handles the data straight out from the CMOS image sensor and is directly related to camera's high-ISO noise characteristics in a low-light environment. ISP can be identified with part number "CXD4xxx". However, It is generally harder to identify part number

History of BIONZ chips in Sony cameras

BIONZ – MegaChips MA07170 and MA07171

The first camera to officially use a so-called BIONZ processor was the DSLR-A700 in 2007, utilizing the MA07170 chip from a MegaChips (MCL) family of 32-bit RISC processors with MIPS R3000 core.

Similar MegaChips processors had been used in the DSLR-A100 (MA07169) as well as in the Konica Minolta 5D (MA07168) and 7D (MA07168), implementing Konica Minolta's CxProcess III running under MiSPO's NORTi/MIPS, an RTOS following the µITRON standard.

The MegaChips MA07170 was also used in the DSLR-A200, DSLR-A300, and DSLR-A350. The DSLR-A850 and DSLR-A900 used two such chips in parallel.

The MegaChips MA07171 was instead used in the DSLR-A230, DSLR-A290, DSLR-A330, DSLR-A380, and DSLR-A390.

BIONZ – Sony CXD4115 ISP

The first BIONZ processor to fully designed in-house by Sony utilized the Sony image processor in . The revised CXD4115-1 was used in the DSLR-A560, DSLR-A580, SLT-A33, SLT-A35, SLT-A55 / SLT-A55V, NEX-5C, NEX-C3, and NEX-VG10.

While the DSLR-A450, DSLR-A500 and DSLR-A550 still used a proprietary operating system (most probably NORTi as well), all later models are Linux-based (CE Linux 6 with kernel 2.3).

BIONZ – Sony CXD4132 ISP + CXD90016GF SoC

The following camera models utilize a Sony CXD4132 series chip as multicore BIONZ processor: SLT-A37, SLT-A57, SLT-A58, SLT-A65 / SLT-A65V, SLT-A77 / SLT-A77V, SLT-A99 / SLT-A99V / HV, NEX-F3, NEX-3N, NEX-5N,

BIONZ X – Sony CXD4236 ISP + CXD90027GF SoC

Sony has introduced their next-generation image processor dubbed the BIONZ X with introduction of ILCE-7 / ILCE-7R in 2013. BIONZ X uses Sony CXD4236 series ISP along with CXD90027GF SoC. The latter is based on a quad-core ARM Cortex-A5 architecture[2], and is utilized to run Android apps on top of the Linux kernel.

It features, among other things, detail reproduction technology and diffraction-reducing technology, area-specific noise reduction and 16-bit image processing + 14-bit raw output.[3] It can process up to 20 frames per second and features Lock-on AF and object tracking.[4]

See also

References

  1. ^ "生産拠点一覧|会社案内|ソニーセミコンダクタマニュファクチャリング株式会社". www.sony-semiconductor.co.jp. Retrieved 2019-01-16.
  2. ^ [1]
  3. ^ sony.com.
  4. ^ http://www.sony-africa.com/product/resources/en_ME/images/Brochure/Digital_still_Camera/Cyber-shot_Catalogue_2014.pdf
  5. ^ "SONY ALPHA A6300 Mainboard Motherboard MCU PCB REPLACEMENT REPAIR PART • $399.99". PicClick. Retrieved 2019-01-16.
  6. ^ Cicala, Roger (2017-10-27). "About Getting Your Camera Wet… Teardown of a Salty Sony A7sII". LensRentals Blog. Retrieved 2019-01-16.
  7. ^ "Sony a7R II Teardown". iFixit. 2015-08-19. Retrieved 2019-01-16.
  8. ^ "A Teardown of the New Sony a7R III". petapixel.com. Retrieved 2019-01-16.

Further reading

This page was last edited on 22 February 2019, at 12:04
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