Tool/software:
Hello!
I was wondering what the maximum cable length can be expected with this phy or if you have any 100BASE-T1 phy that can reach 30 meters?
Regards,
Didrik
Tool/software:
Hello!
I was wondering what the maximum cable length can be expected with this phy or if you have any 100BASE-T1 phy that can reach 30 meters?
Regards,
Didrik
Hi Didrik,
We only test our 100BASE-T1 PHYs for up to 15m cable length.
Best regards,
Greg
Hello Greg,
Thats unfortunate, I found in this paper https://www.ti.com.cn/cn/lit/an/snla420a/snla420a.pdf references to a 100 meter cable length in the table on the second page, but I couldn't find any other references to where that number came from and few datasheets mention any limits.
Regards,
Didrik
Hi Didrik,
I will check with the team that completed the testing for the SNLA420A document to determine the configuration used to achieve those cable lengths. Although the IEEE standard for 100BASE-T1 is 15m, the DP83TC814S-Q1 device can likely support longer lengths than that.
What is your end application for the PHY? Is it possible to use a standard Ethernet PHY? They support much longer cable lengths. You can also use the EVM boards for the 100BASE-T1 PHYs to determine if the required cable length is supported for your specific application.
Best regards,
Greg