EM2800 USB2.0 Video Controller is a highly integrated System on Chip (SOC) that provides a cost-effective solution for video capture application. As illustrated in the system block diagram, a video capture solution requires three chips only: Video decoder, EM2800 and AC 97 codec. Application of such a system can be TV on PC, Camcorder video capture and editing.
 
Video/Audio Input Port
 
USB 2.0 Transceiver
 
Compression Engine
 
GPIO, Two Wire Serial Bus, AC 97 Interface
 
USB 2.0 Serial Interface Engine
 
Color Enhancement
 
 
 
 
No external memory required, No external USB 2.0 PHY required
   
Flexible Video Input Port
8-bit video input port
Bayer RGB
Interlace and non-interlace video
CCIR-601 4:2:2 YUV
CCIR-656 YUV with embedded sync and field ID
Field/Frame drop control
 
Bayer RGB Color Processor
Auto black clamping and user-defined black clamping
Gamma correction
Bayer pattern filtering
Random ratio down scaling
Auto exposure and white balance
 
YUV Color Processor
Gain and offset control in YUV space
Random ratio down scaling
2, 3, 4-tap horizontal filtering
2, 3-tap vertical filtering
 
Up to 30fps @ 720 x 480 size for video processor and compression
Proprietary compression algorithm for both still image and motion-video for USB 1.1
Auto-adjust compression ratio for USB 1.1
USB 1.1 support 30fps @ 320 x 240 resolution
USB 2.0 support 30fps @ 720 x 480 resolution
 
USB Port
On-chip USB Transceiver with High/Full speed compliant
USB 2.0 Isochronous Video pipe up to 24Mb/sec
USB 2.0 Isochronous Audio CD quality pipe up to 1.4Mb/sec
USB Audio Class compliant
 
Miscellaneous
Two wire serial bus to program front end video devices
4 General I/O ports and 2 dedicated I/O port
AC97 link interface
2.5/3.3V Low power Technology
64-pin LQFP package