40-GHz skew-matched cables improve high-speed digital testing

By Nicole DiGiose, technical content editor

Pasternack unveiled a new line of skew-matched cables for use in high-speed digital tests of 10 Gbits/s to 28 Gbits/s, including differential signals, bit-error-rate testing, and eye diagrams. The line consists of three new models that provide a 1-ps delay match. These flexible cables deliver VSWR of 1.4:1; are 100% tested for skew match, and include polarity indicators and restraint bands to keep themselves paired up.

Image source: Pasternack.

With a frequency range of DC to 40 GHz, the cables cover two channels with 50-Ω nominal impedance. Suitable for networking, semiconductor test, and supercomputing industries wherein skew match is important, the cables are made of microporous PTFE cable dielectric and feature triple-shielded outer conductors, 2.92-mm male connectors, and finger-grip coupling nuts.

Key specs include the following:

• 1-ps delay match
• VSWR of 1.4:1
• 100% test up to 40 GHz
• Extremely flexible
• Polarity indicators on cable ends

“These skew-matched cable pairs perfectly complement our existing line of high-speed vertical and end-launch connectors,” said Dan Birch, product manager at Pasternack, in a press release. “They are extremely flexible while providing exceptional performance, plus we can ship them out right away.”

Pasternack’s skew-matched cable pairs are in stock with no minimum order quantity. For additional information on these products, visit pasternack.com.