AV330
General description
AV330C 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 pictures. With its standard CCIR601/656 output it can be used in cellular phone or mobile camera market as ISP+JPEG image process and video compression chip. The built-in JPEG data buffer and RS232 interface supports this ASIC to be used as RS232 interface security camera. With its USB2.0 controller and its support of both USB video and audio class, it is a PC camera controller. 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.
AV330C also support the wireless RF transceiver interface (e.g. 2Mb/s) so it can be used as both wireless camera and USB dongle. In this wireless application it allows 2-ways data/audio and 1-way video flow on the wireless transmission. With its support of both USB video and audio class (UVC and UAC) that it links any video camera device to PC through RF wireless transmission and a video camera becomes more portable than ever before.
Main features
•
USB2.0
Interface
Up to 480Mb/s High speed USB 2.0 compliant device.
Backward compatible with full speed USB1.1 Host.
ISO video high-speed high bandwidth endpoint for 24MB/s transfer.
Support video and audio stream synchronization.
Support bulk in and out endpoint transfer
Support USB video class driver.
•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 , Galaxycore.
Programmable sensor interface.
Resolution up to 8Megapixel.
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
Scaler
AVG
Histogram
3 As (Auto light exposure control, Auto white balance control, Auto
anti-flicker)
4’As– Auto Focus adjustment by dividing into sub-windows and
calculate edge/Y
average.
5th A- Automatic Facial tracking in application software.
Raw image input 3M (2048x1536)@20fps, 5M (2592x1944)@12fps, 8M
(3264x2448)@7.5fps,
Output 8/16bit data as ITU656/601 interface
•JPEG/MJPEG encode
JPEG/MJPEG for video compression
Size: 2048x1536, 1600x1200, 1280x1024, 800x600, 640x480,
320x240,160x120.
MJPEG: VGA (30fps), 2M (1600x1200)@30fps, size up to 3M
(2048x1536)@20fps
UVC MJPEG format or bypass H264 stream supported
Maximal running clock 150 MHz
Output 8 data as ITU656 interface
•SRAM buffer manager
Manager/Configure JPEG 8 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);
Sample rate: 8 / 11.025 / 16 / 22.05 / 32 / 44.1 / 48 / 96 KHz.
ISO video high-speed high bandwidth endpoint up to 4MB/s transfer.
Support mute and volume control.
Support USB audio class driver.
Support 2 endpoint, ISO IN and ISO OUT
Support 2 digital microphone interface with built-in decimation
filters
•Memory Card Interface
SD/MMC (SDHC) card reader.
JPEG output directly write to SD/MMC card.
More than 2GB card size supported
•RF transceiver Interface
2.4Ghz RF transceiver interface supported.
AMICCOM A7125 (2Mb/s), MuChip MV4000 (4Mb/s)
2-way data, audio and 1-way video RF transmission flow
Video rate - QVGA@20fps (for A7125), VGA@5fps
•Power Supply
Single 3.3V operating voltage.
Build in 1.8V regulator for digital parts power supply.
•Miscellaneous
Built-in IR remote controller decoder
Support 20 characters of on screen Display OSD text
Support Real Time Clock
Turbo 8051 interface for video and audio data control.
Programmable Vendor and Product ID through EEPROM.
65K ROM and 8K byte SRAM 8051 code loadable from USB port or EEPROM. |
