To USB or Not to USB


Fabulous USB 3.1 PHY Margins

Siri lied to me

More on that later


Fabulous USB 3.1 PHY Margins

Today, we talk about our superb USB 3.1 PHY.

It’s superb for a number of reasons. Reasons you will be bored with. So lets focus on the one that matters: Margin.

Keysight, a maker of fine PHY analyzers, said to Gervais Fong, our PHY Product Marketing Manager, something like this:


Fong, your fine PHY, appears phenomenal, with not fair, phenomenal! We feel a PHY feature flick featuring your phenomenal PHY margins would be fantastic!

Fong replied, “Our prodigious PHY engineers would be pleased to present our PHYs to promote our pretty much, unparalleled, penultimate PHY margins.”

(Penultimate because they next PHY always be better.)
At least that is how the conversation went in my mind.

PHY Margin means a cleaner eye, or a cleaner signal.

A cleaner signal means you can support longer cables (and sometimes poor cables).  At 10 Gbps this is even more important because

For Product Makers, it means fewer returns because the USB works exactly as it should. (Even if the consumer uses a cheaper, less well made cable, and the other device has a bad PHY, there is a chance our PHY will work and the USB will operate because our PHY has good margins)


Here’s the video featuring Jit Lim, Product Engineer from Keysight demonstrating our PHY margins on Keysight hardware.



Siri lied to me

As I was driving home on Wednesday night, I asked Siri, “What’s the score of the basketball game”

Siri responded “The Warriors are trailing the Cavaliers 108 to 107 in the 4th quarter with 5 minutes left on the clock.”


I asked this question another 4 times in the next minute and Siri responded the same until she finally said

“The Warriors are LOSING to the Cavaliers 108 to 107 in the 4th quarter with 5 minutes left on the clock.”


And later

“The Warriors are LOSING to the Cavaliers 108 to 107 in the 4th quarter with 5 minutes left on the clock.”

Then two minutes later:

“The Cavaliers are beating the Warriors 113 to 107 in the 4th quarter with 3 minutes left on the clock.”


Note: Some facts have been changed to protect the innocent

I could not find a radio station to give me the game, so I kept asking Siri every 10 seconds, and it was tense .  Even Siri was tense. (Probably because some idiot was asking the same question every 10 seconds)


Oh so, That isn’t where Siri lied to me.
I asked Siri, “Will it rain tomorrow? (Friday)”

Siri said, “It looks like it will not rain tomorrow”

It did.

I’ll ask Alexa next time.


And a joke that looks like it will be Politically Incorrect

An Englishman, a Scotsman, an Irishman, a Welshman, a Latvian, a Turk, an Australian, a Kiwi, an Indonesian, an American, a German, a Peruvian, an Egyptian, a Japanese, a Mexican, a Spaniard, a Russian, a Pole, a Lithuanian, a Tibetan, a Swede, a Finn, an Israeli, a Romanian, a Bulgarian, a Serb, a Swiss, a Greek, a Singaporean, a Kazahk, an Italian, a Norwegian, a Dane, a Ugandan, a Nigerian, a Frenchman, a Colombian, an Argentinian and a South African went to a night club.


The bouncer said: “Sorry, I can’t let you in without a Thai.”

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