CCVGA7C5 Datasheet, PDF (2/6 Pages) Unisonic Technologies – VGA PORT COMPANION CIRCUIT

CCVGA7C5
Preliminary
TVS
 PIN CONFIGURATION
 PIN DESCRIPTION
PIN NO.
1
2
3, 11
4
5
6
7
8
9, 16
10
12
13
14
15
PIN NAME
HSYNC_OUT
HSYNC
GNDD
V_RGB
B
G
R
GNDA
V_CC
DDC_DATA
DDC_CLK
V_AUX
VSYNC
VSYNC_OUT
DESCRIPTION
Horizontal sync signal buffer output. Connects to the video connector side of the
horizontal sync line.
Horizontal sync signal buffer input. Connects to the VGA Controller side of the
horizontal sync line.
Digital ground reference supply pin.
V_RGB supply pin. This is an isolated supply pin for the R, G and B ESD protection
circuits.
Blue signal video protection channel. This pin is typically tied to the B video line
between the VGA controller device and the video connector.
Green signal video protection channel. This pin is typically tied to the G video line
between the VGA controller device and the video connector.
Red signal video protection channel. This pin is typically tied to the R video line
between the VGA controller device and the video connector.
Analog ground reference supply pin.
V_CC supply pin. This is the main supply input for the DDC_CLK and DDC_DATA pullup
resistors and ESD protection circuits. It is also connected to the sync buffers and to the
ESD protection diodes present on the HSYNC_OUT and VSYNC_OUT lines.
DDC data pin.
DDC clock pin.
V_AUX supply pin. This is the supply input for the 50kΩ pullups connected to the HSYNC
and VSYNC buffer inputs.
Vertical sync signal buffer input. Connects to the VGA Controller side of the vertical
sync line.
Vertical sync signal buffer output. Connects to the video connector side of the vertical
sync line.
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QW-R223-021.a