You need to test, we're here to help.

You need to test, we're here to help.

17 October 2017

Automotive Ethernet Compliance: Tests in Detail (Part IV)

The specified pass/fail mask for the  transmitter power spectral density test
Figure 1: The specified pass/fail mask for the
transmitter power spectral density test
We've been making our way through a detailed accounting of the compliance tests for Automotive Ethernet, and in our last post, we covered the distortion test. Now we'll wrap up the tour of the compliance test suite with the test of transmitter power spectral density.

12 October 2017

Automotive Ethernet Compliance: Tests in Detail (Part III)

This depicts the setup for the Automotive Ethernet transmitter distortion test
Figure 1: This depicts the setup for the Automotive
Ethernet transmitter distortion test
Among the compliance tests specified for Automotive Ethernet in the 100Base-T1 spec, none is more complex to set up than the test for transmitter distortion. As with the transmitter timing slave jitter test described in an earlier post, it requires access to the DUT's transmit clock (TX_TCLK).