AV518
General description
AV518 video processor provides many solutions for video and image application. Its core features are ISP (Image signal processing) and MJPEG encoder, with built-in JPEG data buffer for one VGA picture. With the built-in SDHC card interface that this ASIC is a mini DV controller which can store both audio and video (VGA@30fps) in the popular T-flash card whose size can reach more than 16GB. The mini DV controller is also a high speed USB card reader.
AV518 products offer high value and performance video imaging controller design due to the flexible architecture and compatibility. This ASIC supports various CCD or CMOS image sensor interface, image capture, processing and USB High Speed transmission, which integrates certified USB_IF UTMI PHY in HS/FS mode and Turbo 8051 microcontroller. In addition to superior quality, AV518 products offer competitive advantages by allowing customization of numerous product functions. The flexible design capability allows for multiple product developments all with a single core, reducing both time to markets and product costs.
Main features
•
MiniDV
Be able to capture video/audio (VGA@30fps) to microSD card with very low
power.
Support 20 characters of On screen Display OSD text.
Support Real Time Clock.
No external memory (SDRAM, SRAM) required
•
USB2.0 Interface
USB2.0 High Speed card reader
Up to 480Mb/s High speed USB 2.0 compliant device.
Backward compatible with full speed USB1.1 Host.
Support bulk in and bulk out endpoint transfer
•
Image Data Input
Support CCD and CMOS image sensor.
CMOS 8/10/12-bit Bayer pattern sensor input.
Support OmniVision, Micron, Samsung, Pixelplus, MagnaChip, Hynix,
SET,Sony etc.
Programmable sensor interface.
Resolution up to 3 Megapixel.
Digital video capture speed: VGA 30 fps; Mega pixel 30 fps. Up to 72
MHz pixel clock.
Video endpoint support external parallel or serial compressed stream
(JPEG)
•
Image
Processing
Lens shading correction
Gamma correction
Bad pixel correction
Demosaic
Color enhancement
Scalar
AVG
Histogram
Auto light exposure control, Auto white balance control and Auto
anti-flicker
Auto Focus
Automatic Facial tracking in application software.
Raw image input 3M(2048x1536)@20fps.
Output 8/16bit data as ITU656/601 interface
•
JPEG /MJPEG Encode
JPEG/MJPEG for video compression
MJPEG: VGA(30fps), 2M(1600x1200)@30fps, size up to
3M(2048x1536)@20fps
UVC MJPEG format supported
Maximal Running clock 150Mhz
Output 8 data as ITU656 interfac
•
SRAM Buffer Manager
Manager/Configure JPEG input lines ping-ping buffer
Buffer Size-for VGA JPEG 75KB
DMA to SD & SPI controller
•
Audio
Support 16 bit AC 97 link interface;
Sample rate: 8 / 11.025 / 16 / 22.05 / 32 / 44.1 / 48 KHz.
Support 16 / 24 bit I2S Function (Master or slave mode);
Support mute and volume control.
Support u-law compression
•
Memory Card Interface
SD/MMC (SDHC) card reader.
JPEG output directly writes to SD/MMC card.
More than 2GB card size supported
•
Power Supply
Single 3.3V operating voltage.
Build in 1.8V regulator for digital parts power supply.
•
Miscellaneous
Built-in IR remote controller decoder
Turbo 8051 interface for video and audio data control.
Programmable Vendor and Product ID through EEPROM.
56K ROM and 8K byte SRAM 8051 code loadable from USB port or EEPROM. |
