Product category:
Circuit Protection Devices
News Release from: Semtech | Subject: RClamp0502B and RClamp0514M
Edited by the Electronicstalk Editorial
Team on 07 September 2005
Devices protect next-generation video
lines
Two ultra-low-capacitance devices are designed to protect data interfaces operating at speeds higher than 2GHz.
Semtech Corp has expanded its RailClamp protection family with two ultra-low-capacitance devices designed to protect data interfaces operating at speeds higher than 2GHz The RClamp0502B and RClamp0514M protect two and four lines, respectively, and each presents a typical line-to-line capacitance of 0.7pF, making these devices the ideal choice for HDMI applications, such as plasma displays, high definition TVs and set-top boxes
This article was originally published on Electronicstalk on 16 Jul 2001 at 8.00am (UK)
Related stories
Low-cost miniature push-pull voltage controller
New from Semtech, the SC4820 is a low-power pulsewidth modulator (PWM) controller intended for power conversion using push-pull or bridge topologies.
Linear FET controllers for space-saving PSU design
Semtech has a new family of linear FET controllers that enable simple, space-saving design of distributed single and dual power supplies on primary and peripheral circuit boards.
The HDMI compliance test specification (CTS) requires sink (receiver) ports maintain a differential impedance of 100ohm +/-15%.
Too much added capacitance will cause the impedance of the differential pair to drop.
With such low capacitance, the RClamp0502B and RClamp0514M meet this stringent specification, while also providing a high level of protection against electrostatic discharge (ESD) and cable discharge events (CDE).
Both devices have a flow-through design for ease of layout.
The pins of the RClamp0514M are spaced at a pitch of 0.5mm for reducing discontinuities on high speed lines.
The RClamp0502B also has a flow through design and protects one differential pair.
The versatility of this single device allows designers the freedom to separate clock and data pins.
Furthermore, neither device requires impedance compensation, such as common-mode chokes, to meet the requirements of the stringent HDMI CTS.
They feature extremely low clamping voltage for superior protection of sensitive ICs in high ESD threat environments.
They meet IEC61000-4-2 specifications for protection against electrostatic discharge (ESD), a common phenomenon with data interfaces.
The solid-state design ensures protection against repeated strikes without degradation or damage.
"Today's very high-speed data interfaces need a new breed of protection device with the clamping and capacitance characteristics to protect downstream ICs, without impeding system performance", said Tom Dugan, Semtech's Director of Protection Products.
"With both low clamping and low capacitance, the RClamp devices stand alone in the industry as the best products for these applications".
The lead-free design of the devices complies with the European Union's Restriction on Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directive to meet worldwide environmental and regulatory requirements.
• Semtech: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
