Design Con 2015

CDNs aid EMC testing of USB 3.0, HDMI cables

-September 07, 2013

Joining Teseq’s extensive line of over 60 CDNs (coupling/decoupling networks) for EMC RF conducted immunity testing are five new models that can be used to test USB 3.0 interfaces, HDMI cables, coaxial cables, and 8-line unshielded cables. The CDN USB 3.0, CDN HDMI, CDN S502, CDN S752, and CDN A801 comply with IEC/EN 61000-4-6 requirements and provide a reliable method for injecting RF energy into EUT (equipment under test).

Designed for shielded USB cables, the CDN USB 3.0 tests all existing USB interfaces (USB 1.0, 1.1, 2.0, and 3.0) and is fitted with a 9-pin A-type connector on EUT and AE (auxiliary equipment) ports. It allows transfer rates of up to 4.8 Gbps, increased maximum bus power, and full-duplex data transfers.

The CDN HDMI is used for screened multimedia cables and is fitted with an HDMI A-type connector on EUT and AE ports. All 19 pins are connected for compatibility with HDMI V1.4.

Both the CDN S502 and CDN S752 allow testing on coaxial 50-Ω and 75-Ω interfaces and have N-type connectors on EUT and AE ports. A double-screened cable within the devices enables consistent test results.

Teseq’s 8-line CDNs, the CDN A801 and A801-10 cover 150 kHz to 300 MHz and 10 kHz to 80 MHz, respectively, for testing unscreened and unbalanced control interfaces. These CDNs are fitted with 4-mm banana connectors on EUT and AE ports and are easily adapted to a wide variety of control interfaces, including RS-232, RS-422, RS-485, and custom interfaces.

CDN USB 3.0 product page
CDN HDMI product page
CDN S502 product page
CDN S752 product page
CDN A801 product page
CDN A801-10 product page


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