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Simplify HDMI test with the right platform

Posted: 01 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:CTS 1.3b? digital phosphor oscilloscope? differential TDR? differential probing?

HDMI.Org published ver 1.3 of the HDMI specification in June 2006. This version adds higher display resolution formats, including 1,080p, Deep Color formats with serial data rates of up to 3.4Gbps. HDMI 1.3 is the most significant upgrade yet in the specification that has become the de facto standard interface for high-definition (HD) devices that include DVD players, HDTV and the newest gaming devices. HDMI 1.3 defines the latest HD A/V technology that began hitting the consumer market late 2006, and continues to roll out this year. To ensure reliable information transmission and interoperability, industry standards specify requirements for the network?s PHY. HDMI Compliance Test Specifications (CTS) define an array of compliance tests for the HDMI PHY. Last March, HDMI.Org published an updated CTS (CTS 1.3b) document that incorporates new tests for the capabilities defined in HDMI 1.3.

High-quality test and measurement instruments, and solutions for high-speed serial data are fundamental to ensure compliance with the HDMI CTS 1.3b and the development of successful products that implement the HDMI 1.3 specification. Figure 1 shows the major elements of the HDMI transmission system--source, cable and sink. While it is recommended to perform as many tests as possible, the core electrical tests are critical for compliance.

Per HDMI CTS 1.3b specifications, the complete compliance test solution includes real-time oscilloscopes, sampling oscilloscopes, signal generators, differential probes and test fixtures. However, the key is how to choose the right test platform to simplify the latest HDMI designs and to ensure compliance with the latest test requirements. Engineers need to integrate several instruments into a complete, flexible and cost-effective solution.

View the PDF document for more information.




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