[SI-LIST] Re: USB 3.0 Even Mode Impedance
- From: "Jory McKinley" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "jory_mckinley@xxxxxxxxx" for DMARC)
- To: "Charles.Grasso@xxxxxxxxxxxx" <Charles.Grasso@xxxxxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 13 Jan 2015 22:00:05 +0000 (UTC)
Hello Charles,There are some USB 3.0 (5Gbps) specs in the USB 3.1 spec which I
use on occasion:
https://manuais.iessanclemente.net/images/b/bc/USB_3_1_r1.0.pdf
From 6-31:
RTX-DC Transmitter DC common mode impedance18 (min)30 (max)Ω DC impedance
limits to guarantee Receiverdetect behavior. Measured with respect to ACground
over a voltage of 0-500 mV.
Regards,-Jory Jory McKinley
McKinley Consulting
e-mail: jory_mckinley@xxxxxxxxx
phone: (774)-285-2859
From: "Grasso, Charles" <Charles.Grasso@xxxxxxxxxxxx>
To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
Sent: Tuesday, January 13, 2015 1:12 PM
Subject: [SI-LIST] USB 3.0 Even Mode Impedance
Hello - The USB 3.0 spec does not appear to define the even mode impedance.
Can some one point me to a reference for that?
Thanks!!
Best Regards
Charles Grasso
Compliance Engineer
Echostar Communications
(w) 303-706-5467
(c) 303-204-2974
(t) 3032042974@xxxxxxxxx
(e) charles.grasso@xxxxxxxxxxxx
(e2) chasgrasso@xxxxxxxxx
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