UNISONIC TECHNOLOGIES CO., LTD

CCVGA7C5

Preliminary

TVS

www.unisonic.com.tw

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Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R223-021.a

VGA PORT COMPANION

CIRCUIT



DESCRIPTION

The UTC CCVGA7C5 is an ESD solution for the VGA port

connector. This device integrates ESD protection for all signals,

Two non-inverting drivers provide buffering for the HSYNC

and VSYNC signals from the video controller IC. These buffers

accept TTL input levels and convert them to CMOS output levels

nominal 60Ω output impedance to match the characteristic

impedance of the HSYNC and VSYNC lines of the video cables

typically used. The inputs of these drivers also have high

impedance pull−ups (50kΩ nom.) pulling up to the VAUX rail.

In addition, the DDC_CLOCK and DDC_DATA channels have

interfacing to graphics controller ICs with low voltage supplies. The remaining channels are connected to the main 5

minimize crosstalk due to common ground impedance.

ESD protection is implemented with current steering diodes designed to safely handle the high peak surge currents

associated with the IEC−1000−4−2 Level−4 ESD Protection Standard (±8kV contact discharge). When the channels

are subjected to an electrostatic discharge, the ESD current pulse is diverted via the protection diodes into the

positive supply rails or ground where they may be safely dissipated.



FEATURES

* 7 Channels of ESD Protection Designed to Meet

IEC−1000−4−2 Level−4 ESD Requirements (±8kV Contact

Discharge)

Facilitate Operation with Sub−Micron Graphics Controller ICs

* Very Low Loading Capacitance from ESD Protection Diodes

at Less than 5pF Typical

* TTL to CMOS Level−Translating Buffers for the

HSYNC and VSYNC Lines

* High impedance Pull−Ups (50kΩ Nominal to

VAUX) for HSYNC and VSYNC Inputs

DDC_CLK and DDC_DATA Lines

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ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

CCVGA7C5L-R16-T

CCVGA7C5G-R16-T

SSOP-16

Tube

CCVGA7C5L-R16-R

CCVGA7C5G-R16-R

SSOP-16

Tape Reel

(1) T: Tube, R: Tape Reel

(2) R16: SSOP-16

(3) L: Lead Free, G: Halogen Free

CCVGA7C5L-R16-T

(1)Packing Type

(2)Package Type

(3)Lead Free