To USB or Not to USB

Archive for 2017

 

USB 3.2 Cable Lengths and Water Delivery

From USB 2.0 to USB 3.2, USB cables became shorter. When USB replaced keyboards and mice, USB’s signaling rates of 1.5 Mbps and 12 Mbps. Transmitted more than enough data. If you know what a floppy disk is, those stored data in the Megabytes. When USB 2.0 launched in 1999 it maintained the 5 meter […]

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Bit Error Rates for USB 3.2

Bit Error Rates and Snoopy’s rejection letters Bit Error Rates (BER) in wired and wireless communication communicate the “allowable” or target number of errors (rejected or non-transmitted data) that can occur over some given time. Usually this is measured of a period time like a second. Wired interfaces enable faster speeds because a hard wire […]

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A cool video on USB 3.2 and USB 3.2 Primer Part 2

A cool video on USB 3.2 and USB 3.2 Primer Part 2 Today, on Thursday, (what I call 2nd Wednesday), I’ll write about Isochronous over USB 3.2. Before that, Our Super PHY Guy, Gervais Fong, (Product Marketing Manager for USB and DP PHYs) has an great introduction to USB 3.2. Watch the video first. ttps://youtu.be/Q2lkl6jvE6E […]

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USB Audio Device Class 3.0

Welcome to what I call the second Wednesday of this week, or what you would call Thursday.  Here’s a blog on USB Audio Device Class 3.0 USB 2.0 and Audio work well together. The highest audio quality data streams with 7 channels of audio at the highest bit rates easily fit into the USB 2.0 bandwidth […]

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USB 3.2 Primer – Part 1

USB 3.2 Primer – Part 1 USB 3.2 brings us from USB 3.1’s 10 Gbps to 20 Gbps. The always cunning and clever USB-IF did a lot to make this work well. USB 3.2 only works with the new Type C connector. The Type-C connector and Cable provide two lanes, Lane 0 and Lane 1.   […]

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USB Audio Device Class 3.0 and Elon’s Neural Interface

USB Audio Device Class 3.0 and Elon’s Neural Interface   After a meeting in Synopsys Building 8 this morning, a colleague said to my, “You know it’s a real problem that this (undisclosed) product doesn’t support USB audio like the Apple and Pixel 2 phones do with Type C. My immediate response was, “Well, the […]

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Wireless, Quantum Computing, and a USB Type-C

Wireless, Quantum Computing, and a USB Type-C The ultimate in quantum computing is wireless communications. (Really there’s a lot more than that). The idea is that if I can get the particles in California entangled with particles in China, I could have instaneous communication. (I don’t know how much power it would take, if it […]

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USB 3.2 and Power Delivery – Mostly Charging – USB Developer Days Sept 2017

We’ve just returned from USB Developers Days in Vancouver, B.C. Another day on USB Authentication and USB Power Delivery. More importantly, USB Type-C is here. That means lots of cables: Here’s the ones that can think of USB 2.0 only USB 3.x USB supporting Alt-Mode like DP USB Power Only Different power ratings Power plus […]

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USB 3.2 and Rat Trap plus Lego Obstacle Course

So it’s Saturday night at 11pm  (now 1145ish) and I’ve not blogged for several weeks so it’s time. I visited China recently, and gave my card to (undisclosed) at (undisclosed) in the city of (undisclosed), China. The engineer looked at my card (which has my picture), looked at me, then looked at me, then looked […]

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First and Only Certified USB 3.1 Host IP (in the Universe) probably

Synopsys earned the first ever certification of a USB 3.1 Host IP Solution. Most likely this is the first and only in the universe.   First again…after first with certified: USB 3.1 Device IP Solution USB 3.0 Host IP Solution USB 3.0 Device IP Solution USB 2.0 Host IP Solution USB 2.0 Device IP Solution And […]

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