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參數(shù)資料
| 型號(hào)： | ZC0302 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | VGA & CIF USB PC Camera Controller |
| 中文描述： | 顯卡 |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | ZC0302 |
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5
Mar. 2002
ZC0302
VGA & CIF USB PC Camera Controller
2. Architecture
2.1. ZC0302 Block Diagram
C
(
PC
HOST
ZC0302
U
(
System Controller
C
I
Audio
Interface
S
&
R
J
E
I
EEPROM
Interface
EEPROM
MIC
F
IGURE
2 B
LOCK DIAGRAM OF
ZC0302
Figure 2 shows the block diagram of ZC0302. The ISP block receives RGB raw data from CMOS image sensor
interface and performs various image processing tasks such as white balance, color correction, gamma correction,
histogram equalization and so on. The Sub-sample & Raster block handles the input image data scaling and
converts input image data to 8x8 block data format required by DCT module. The JPEG Encoder block compresses
the image data from ISP block into JPEG format data. The compressed image data is then transferred to PC host
via USB Device Controller (UDC) block for display.
The Audio Interface takes the audio input in mono 16-bit PCM format, and then transfers it to PC Host through the
audio streaming pipe in UDC.
2.2. CMOS Image Sensor Interfaces
Support sensors from most CMOS image sensor vendors including Agilent, Hynix, IC Media, TASC, PixArt,
Photobit, OmniVision, and Century
9bit/8bit camera input interface
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