CCVGA7C5 Datasheet, PDF (6/6 Pages) Unisonic Technologies – VGA PORT COMPANION CIRCUIT

CCVGA7C5
Preliminary
 TYPICAL APPLICATION CIRCUIT
To Video
DAC V_DD
5V
0.2µF 0.2µF
3.3V
H-Sync
V-Sync
DDC_Data
DDC_Clk
Red
Green
Blue
VF**
VF**
VF**
4
9, 16 13
V_RGB
V_CC V_AUX
2
14
HSYNC
VSYNC
GNDA ⁸
GNDD ^{3, 11}
10
12
DDC_DATA
DDC_CLK
Digital Analog
UTC
GND GND
CCVGA7C5
HSYNC_OUT
VSYNC_OUT
1
15
SF**
SF**
7
6
5
R
G
B
VF** − VIDEO EMI Filter
SF** − SYNC EMI Filter
TVS
H-Sync
V-Sync
DDC_Data
DDC_Clk
Red
Green
Blue
GNDA, the negative voltage rail for the R, G and B diodes is not connected internally to GNDD. GNDA should
ideally be connected to the ground of the video DAC IC. This will prevent any ground bounce caused by digital
signals from injecting noise onto the R, G and B signals. Analog GND and digital GND are typically connected on the
printed circuit board.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R223-021.a