USBterminationresistors

2023年1月24日—ThepurposeofRpandRdterminationsonCCpinsistoidentifytheDFPtoUFPconnectionandtheCCpinthatwillbeusedforcommunication.To ...,2023年1月9日—Anotherexampleusing22ohmterminationresistorsthatisbasedonasimilarSTM32ishere.So,shouldIadd22ohmseriestermination ...,2021年10月30日—Justasanexample,theTUSB2077APTRUSBHubcontrolleruses27Ohmterminationresistors.Makesuretocheckthedatasheettocheckwheth...

參考資訊如下
Termination Resistors Required for the USB Type

2023年1月24日 — The purpose of Rp and Rd terminations on CC pins is to identify the DFP to UFP connection and the CC pin that will be used for communication. To ...

STM32 USB Full Speed device

2023年1月9日 — Another example using 22 ohm termination resistors that is based on a similar STM32 is here. So, should I add 22 ohm series termination ...

Routing Requirements for a USB 2.0 Impedance ...

2021年10月30日 — Just as an example, the TUSB2077APTR USB Hub controller uses 27 Ohm termination resistors. Make sure to check the datasheet to check whether you ...

Does USB 2.0 require termination resistors?

2014年9月1日 — They are impedance matching series resistors. If you read the USB documentation, the need for these, depends on the impedance of the drivers in ...

Why USB Data Series Resistors?

2014年5月9日 — They are series termination resistors. The USB standard specifies that the signal-to-ground impedance is 30 ohms and differential impedance ...

AN11392 Guidelines for full

2014年2月19日 — A full-speed USB device requires a 1.5 kΩ resistor between the USB_DP pin and 3.3 V. A USB host controller has 15 kΩ resistors on both the ...

and8074

The USB Line termination is reached through the series resistors, RS1 and RS2 (22 Ω or 30 Ω) connected on the D+ and D− lines. These resistors match the cable ...

AN0046

Terminate D+ and D- with 15 ohm serial resistors. Place near EFM32. • Use an ESD protection device. Place near USB receptacle. • Select a USB Series A type ...