PixArt Imaging Inc.
PAC7312
VGA PC Camera Single-Chip with Audio
2. Block Diagram
Audio
Analog
Circuits
Audio
Control
Interface
VGA
Sensor
Image
Processing
Engine
JPEG
Compression
Engine
Rate
Control
USB
Controller
PLL
ASIC Register Bank
Sensor Register Bank
Regulator
EEPROM
Controller
PAC7312 is a single-chip USB camera. It includes a VGA sensor based on PixArt VGA sensor with
enhanced image quality and sensitivity, a 48MHz PLL, internal regulators, JPEG image compression,
image processing schemed, control registers, on-chip SRAM for image data buffer and USB
controller. All register parameters are set by USB interface. And the JPEG compressed image data is
transmitted by USB 1.1 isochronous pipe.
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PixArt Imaging Inc.
E-mail:
fae_service@PixArt.com.tw
V1.5 Oct. 2005
PIXART [ PIXART IMAGING INC. ]
