C328R User Manual
The C328R is VGA camera module performs as a JPEG compressed still camera and can be attached to a wireless or PDA host. Users can send out a snapshot command from the host in order to capture a full resolution single-frame still picture. The picture is then compressed by the JPEG engine and transferred to the host thru serial port.
Features
Small in size, 20×28mm
VGA resolution, down sample to QVGA or CIF
3.3V operation
Low power consumption 60mA
User friendly commands to control the module
UART interface of up to 115.2Kbps
Auto detect baud rate and make connection to the host
Power saving mode
Various lens options
System Configuration
1. Camera Sensor
The C328R module uses OmniVision VGA color digital CameraChips with an 8-bit YCbCr interface.
2. OV528 Serial Bridge
The OV528 Serial Bridge is a JPEG CODEC embedded controller chip that can compress and transfer image data from CameraChips to external device. The camera interface synchronizes with input video data and performs down sampling, clamping and windowing functions with desired resolution, as well as color conversion that is requested by the user through serial bus host commands.
The JPEG CODEC can achieve higher compression ratio and better image quality for various image resolutions.
3. Program EEPROM
A serial type program memory is built-in for C328R to provide a set of user-friendly command interfacing to external host.
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