what is the recommendation design/connections for FX3 with a Type-C receptacle.

[ryankw]

what is the recommendation design/connections for FX3 with a Type-C receptacle when using a USB 3.1 Type-A to Type-C cable to connect from PC host to FX3? Basically we just need FX3 able to transfer data between PC Host and the FX3 board device with using Type-A to Type-C cable.

[JayakrishnaT_76 · Accepted solution]

Hello,

Please refer to the Section 2 - FX3 Type C Receptacle Design of the following KBA to understand the connections between FX3 and a Type C Receptacle:

https://community.cypress.com/t5/Knowledge-Base-Articles/Designing-FX3-CX3-Based-USB-Type-C-Products...

In addition to the connections shown in the KBA, some MUXs  (Eg: PI5USBxx) have both mux and re-driver inside. Sometimes, external re-drivers are used along with MUX. For mux + re-driver designs, we recommend that the AC caps should be added on both TX and RX lines on both side of the mux. That is, AC caps should be present on both TX and RX lines between mux & receptacle and also between mux & FX3.
If it is a mux only design, then AC caps are required only on TX lines on both sides of mux. That is AC caps should be placed only on TX lines between mux & receptacle and also between mux & FX3. 

For both these cases, the value of AC caps that are added between FX3 and mux must be 0.1uF.

[ryankw]

Thanks Jaya.

what is the different between Type-C plug and receptacle from the given link above?

my design seem like need something like the Section 1 FX3 Type-C Plug Design. It is because I am using USB 3 Type-A to Type-C cable to transfer data between both end. Could you help to advise?

[JayakrishnaT_76]

Hello,

The female connector mounted on the host or device is called the receptacle, and the male connector attached to the cable is called the plug.

A USB receptacle should accept a USB plug. As per my understanding, you are using a Type A to Type C cable which will have USB plugs at both the ends. So, a receptacle should be used at the device side.