PACVGA100/101
VGA Port ESD Protection and Termination Network
Features
•
•
•
Seven channel ESD protection
+
15 kV ESD protection per channel, connector
side (HBM)
+
8 kV contact, 15 kV air discharge ESD protection
per channel, connector side (IEC 61000-4-2 Level
4 standard)
Low loading capacitance—4.5pF typical
16-pin QSOP package
Product Description
The PACVGA100/101 functions as a transmission line
termination and ESD protection device for video appli-
cations. It provides 75 ohm parallel terminations for
video R, G, and B lines and series terminations for the
Horizontal Sync, Vertical Sync and the two DDC lines
which serve as Plug and Play logic signals. In addition,
all interface lines provide Level 4 ESD protection per
the IEC 61000-4-2 contact discharge specification. The
PACVGA100 provides internal pull-up resistors (R3) for
the two DDC lines whereas the PACVGA101 omits
these internal pull-ups so that different pull-up resistor
values can be added externally.
•
•
Applications
•
•
•
•
ESD protection and termination resistors for VGA
(video) port interfaces
Desktop PCs
Notebook computers
LCD monitors
Typical Application Circuit
Simplified Electrical Schematic
V
CC
R1, R2 required
only for VGA101
(See Note 1)
R
G
B
V
CC
C
BYPASS
0.2uF
1
8
16
Video Controller
Red
Grn
Blue
H-Sync
V-Sync
DDC_Data
DDC_Clk
2
3
5
7
9
11
14
PACVGA100/101
6
10
12
15
Video Connector
H-Sync
V-Sync
DDC_Data
DDC_Clk
R1
R2
4
13
Note 1: For best ESD protection, minimize R/G/B trace lengths
between the PACVGA100/101 device and the video
connector.
R1 = 75Ω, R2 = 33Ω
R3 = 2.2KΩ (for PACVGA100 only)
* R3 omitted for PACVGA101
© 2002 California Micro Devices Corp. All rights reserved.
02/14/02
215 Topaz Street, Milpitas, California 95035
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Tel: (408) 263-3214
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Fax: (408) 263-7846
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www.calmicro.com
1
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
