1 pF barrier broken for DVI and HDMI interface ESD protection
7 March 2007
Circuit & System Protection
STMicroelectronics has introduced a new device that it says allows, for the first time, high-speed interfaces such as DVI (digital visual interface), HDMI (high definition multimedia interface), USB 2.0, and Ethernet to operate at speeds of up to 3,2 Gbps with full 15 kV ESD protection. Using state-of-the-art silicon technology, ST's new DVIULC6-4SC6 is a monolithic, application-specific discrete device that provides complete rail-to-rail protection of four data lines and the power rail in these high speed interface applications without compromising signal integrity.
With the proliferation of portable, high-performance computer, consumer and telephone equipment where the user typically takes no precautions against static electricity, protection devices play a key role in ensuring reliable operation of the equipment. Protecting high speed data ports is particularly challenging as the capacitive loading introduced by the protection devices can significantly degrade the signal integrity, especially at the increasingly high data rates required by DVI and HDMI.
Previous solutions typically presented a capacitive loading of several picoFarads - high enough to require designers to make difficult trade-offs between the level of protection provided and the resulting signal degradation at typical working data rates.
The DVIULC6-4SC6's ultra-low line capacitance (0,6 pF typ. for DVI/HDMI application conditions, 1pF max.) provides a new level of trade-off. Designers can provide 15 kV ESD protection of these interfaces without sacrificing signal integrity. In addition to the greatly reduced line capacitance, the DVIULC6-4SC6 also offers better impedance matching (0,015 pf), minimal channel imbalance and crosstalk (0,007 pF), and an ultra-high cut-off frequency of 5,5 GHz.
Housed in SOT23-6L package, the DVIULC6-4SC6 can protect data and video lines in a range of products that use DVI, HDMI, USB2.0, 1394a, b or c, Firewire, or Ethernet 10/100/1000 interfaces.
Further reading:
Clearing the Static: Key principles of ESD control in electronics manufacturing
Actum Electronics
Circuit & System Protection
Effectively managing electrostatic discharge is essential in electronics manufacturing to ensure not only product reliability, but also worker safety.
Read more...
Clearing the Static: Three steps for a dry ESD packaging system
Actum Electronics
Circuit & System Protection
For optimal storage, it’s essential to complete the dry-packaging system by adding Desiccant Packs and Humidity Indicator Cards.
Read more...
Ensuring safety with earth leakage protection
NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...
Suppressing EMI with filters
Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...
Patch attenuates like a shielding cabinet
Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...
Clearing the Static: Ionisation equipment
Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These
...
Read more...
Motor and feeder protection for LV and MV environments
NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
Read more...
Clearing the Static: How to protect PCBs from electrostatic discharge and moisture
Actum Electronics
Circuit & System Protection
Printed circuit boards (PCBs) are essential components in most electronic devices. They are sensitive to environmental factors like electrostatic discharge (ESD) and moisture, which can cause significant
...
Read more...
Clearing the Static: ESD chairs: Essential tools in controlled protected areas
Actum Electronics
Circuit & System Protection
Static poses a significant risk in various industries, particularly those involving sensitive electronic components and equipment. To mitigate these risks, electrostatic discharge (ESD) chairs play
...
Read more...
Clearing the Static: ESD dissipative floor mats
Actum Electronics
Circuit & System Protection
Dissipative floor mats are specialised mats designed to protect sensitive electronic equipment and components from electrostatic discharge (ESD), by quickly drawing the static electricity off workers before they touch such items.
Read more...
printer friendly version