Realtek tap R&S for entry into automotive Ethernet

Realtek tap R&S for entry into automotive Ethernet

Business news |
By Nick Flaherty

Realtek has entered the OPEN Alliance (OA) TC12 market for automotive Ethernet in a partnership with Rohde & Schwarz in Europe.

Realtek’s RTL9010 1000BASE-T1 PHY chipset supports the OA TC10 Wake-up/Sleep protocol for lower power operation and is the industry’s first and one of very few AEC-Q100 Grade 1 chipsets with power consumption as low as 400mW. This allows a built-in switching regulator that also supports a 12V/24V VBAT power supply.

The two companies are also working on test systems for the emerging TC15 MultiGBASE-T1 specification. Realtek has designed several generations of Ethernet chips for communication network and computer peripheral products as well as multimedia chips, but product validation must be conducted before the new product is released to the automotive market.

With the stringent requirements for MDI Mode conversion defined by the OPEN Alliance, test fixture design is the first and foremost measurement challenge for R&D engineers. Rohde & Schwarz was the first to design a compatible SMA connector for the fixture of the object to be tested, significantly reducing the lead time required by developers.

The R&S RTO2044 oscilloscope features a real-time FFT function that allows users to perform the Transmitter Power Spectral Density (PSD) tests of the OA TC1 (IEEE 802.3bw 100BASE-T1) and OA TC12 (IEEE 802.3bp 1000BASE-T1) Test 97.1.4 specifications on the oscilloscope without the need for additional spectrum analyzers. The ‘scope also has a built-in arbitrary waveform generator to support Test 97.1.2 Transmitter Distortion tests which require a noise generator.

The OA TC12 test standardizes the environmental testing of the OA TC9 MDI Test Head and the R&S ZNB vector network analyzer complies with the stringent testing requirements of the OA TC9 UTP Longitudinal Conversion Loss and Longitudinal Conversion Transfer Loss: -61dB (frequency 10MHz to 80MHz).

Realtek and Rohde & Schwarz have jointly invested resources into the development of products that meet the TC1 and TC12 standards set by the OPEN Alliance. Furthermore, they are also actively deploying resources into the TC15 (MultiGBASE-T1) market, the standards and specifications of which the OPEN Alliance is currently working on.

“The performance and ease of measurement of the R&S RTO2044 oscilloscope and R&S ZNB vector network analyzer are important considerations for our R&D engineers, given the fact that these two instruments are references at UNH-IOL, an Automotive Ethernet laboratory accredited by OPEN Alliance”, said Yee-Wei Huang., vice president at Realtek.

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