OV519 C AMERA M ATE ™ Processor
Enhanced Single Chip Processor for USB PC Camera Applications
OV519 Datasheet (v1.3)
© OmniVision Technology, Inc.
Page 1 of 1
The OV519 C AMERA M ATE ™ Processor is an enhanced single chip processor for high-resolution USB PC camera applications. When combined with an OmniVision C AMERA C HIP ™ color image sensor, such as the OV86xx (SVGA), OV76xx (VGA) or the OV66xx (CIF), the OV519 comprises a low cost, integrated USB camera system, with no additional USB transceiver or DRAM required. As shown in the system block diagram below, the OV519 also supports an audio input with for full audio/video operation.
During operation, the OV519’s camera interface synchronizes with the C AMERA C HIP YC b C r 422 progressive video data to perform Down-sampling, Clamping and Windowing (DCW) functions with the desired resolution requested by users through the USB command set. The embedded Data Compression Engine then compresses the video data to standard JPEG format and the resultant video data is transferred to the host through USB.
This standard USB interface allows the end user to implement PC camera systems easily, rapidly reducing the time-to-market.
PC Camera System Block Diagram
0º to 70ºC
• Low cost, single chip solution for high resolution USB PC
Full USB support (v1.1) including 2 selectable default hardwired video/audio descriptors as well as options for additional customer-specific USB PIDs.
High-performance video transfer rate of 20FPS for SVGA and 30FPS for VGA, CIF/SIF & QCIF/QSIF formats with selectable YUV 4:2:2 , 4:2:0, 4:1:1 or 4:0:0 formatting.
Full USB audio interface (Class 1.0 compliance) incorporating a 16-Bit mono ADC for microphone usage with sampling rates of 8KHz, 16KHz and 24KHz. • Low voltage 2.5V (Core) and 3.3V (I/O) operation. • 8-Bit 8051-compatible microcontroller, with embedded 512-byte RAM
• External system clock or independent crystal operation. • Down-sampling, Clamping and Windowing (DCW) functions
• YUV averaging and Y distribution with Y enhancement •
Defect compensation up to 8 pixels in YUV input
R E F
76543S S C 1D
D C 1
S S I O 1D D I
210P W D N S C
E N G P I O G P I O G P I O G
P I O V S S 3I O V D D I O S C S S I O S I O V S
S C 2
V D D C V
S S I
O M I C
I N V D D I O
I O M I C I N