Tyco Electronics Introduces The Industry's First ESD and Overcurrent Reference Layout for HDMI(TM) 1.3 Interfaces Based on Passive Protection Devices |
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Tyco Electronics/Raychem.
305 Constitution Dr., Mailstop R17-1A
Menlo Park, CA, 94025-1164
USA
Press release date: November 28, 2007
MENLO PARK, Calif. - Nov. 28, 2007 - Tyco Electronics announced today the introduction of a reference layout for ESD and overcurrent protection for HDMI(TM) 1.3 interfaces. The reference layout utilizes Tyco Electronics' low-capacitance (0.25pF signal to ground) PESD protection devices, and space-effective component placement and routing to help protect against ESD events and optimize board space. The reference layout also includes optional overcurrent protection on the +5V rail, using the PolySwitch(TM) nanoSMD device.
The newest HDMI 1.3 standard doubles the previous HDMI data rate to 3.4Gbps per differential signal pair. With such high data transmission rates, low capacitance and good board design are crucial to provide adequate signal integrity.
Tyco Electronics' new ESD and overcurrent protection reference layout for HDMI 1.3 was developed in conjunction with Efficere, Inc., a leader in high-speed interface design and test, and meets or exceeds the HDMI 1.3 specifications for operation at 3.4Gbps for Impedance (TDR), Data Eye, and Far End Crosstalk.
"Achieving the optimum signal integrity and crosstalk performance with HDMI layouts is complicated, and adding ESD protection amplifies the design challenge," said Efficere Technologies Vice President of Sales, Joe O'Brien. "Efficere has worked with Tyco Electronics to develop a layout with ESD protection that exceeds HDMI 1.3 requirements, and can help reduce electronic equipment manufacturers' time to market."
The bi-directional PESD0603 or PESD0402 devices are configured in a very small space behind the HDMI connector and help designers meet the IEC 61000-4-2 standard for ESD protection (±15kV for air, ±-8kV for contact). The PESD devices are offered in EIA standard 0603 and 0402 sizes and can be used in various end applications, including DisplayPort, WiMAX and cellular base stations, eSATA, and other high-speed data and analog interfaces.
In HDMI source devices, such as DVD players, set-top boxes, computers and other HD sources, the specification requires that the transmitter interface's voltage rail include overcurrent protection to prevent short circuit or abnormally high current from damaging the source device. Tyco Electronics' protection layout includes optional overcurrent protection on the +5V rail, using the popular PolySwitch nanoSMD circuit protection device.
A whitepaper detailing the benefits of the reference layout is available at www.circuitprotection.com/hdmi/. The PESD0603, PESD0402, and PolySwitch nanoSMD devices are available today in volume, and are compatible with standard surface-mount and reflow installation procedures. For further information including design assistance, data sheets, volume pricing, delivery quotes, and samples, call (800) 227-7040, or visit www.circuitprotection.com.
ABOUT TYCO ELECTRONICS
Tyco Electronics Ltd. is a leading global provider of engineered electronic components, network solutions, wireless systems and undersea telecommunications systems and services, with 2006 sales of US$12.3 billion to customers in more than 150 countries. We design, manufacture and market products for customers in industries from automotive, appliances and aerospace and defense to telecommunications, computers and consumer electronics. With approximately 8,000 engineers and worldwide manufacturing, sales and customer service capabilities, Tyco Electronics' commitment is our customers' advantage. More information on Tyco Electronics can be found at www.tycoelectronics.com.
Contacts:
Product Communications:
Patrick Hibbs Marketing Manager Tyco Electronics Raychem Circuit Protection Products 214-725-5701 patrick.hibbs@tycoelectronics.com
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