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Frequent questions

  • [FAQ] TUSB2E11: What is the optimal location for an eUSB repeater on my PCB?

    Part Number: TUSB2E11 The eUSB2 interface is becoming increasingly common in designs with advance processors. In order to enable backwards compatibility with USB 2.0 hosts and devices, an eUSB2 repeater must be placed between the processor and the USB…

  • [FAQ] Interface Protection Guides

    Back to FAQ Home Page Interface Protection Guides Part Recommendation Packaging & Layout Models Transient Standards System/Device Level Design Power Dissipation and Temperature Top Threads …

  • [FAQ] SN75DPHY440SS: Is it okay to swap the polarity and lane order?

    Part Number: SN75DPHY440SS My customer asked about changing positive signal and negative signal. (i.e. applying positive input to DA0N, negative input to DA0P, positive input to DA1N, negative signal to DA1P, and so on.) Is it okay to use this device…

  • [FAQ] DS280DF810: Can I use a signal conditioning device at a lower data rate than its target application?

    Part Number: DS280DF810 Other Parts Discussed in Thread: DS160PR410 , A common question when using a signal conditioning device is can the device support a data rate that is lower than the target data rate. The answer to this is device dependent, but…

  • [FAQ] TUSB8041A: Debug procedure if TI TUSB80xx or TUSB40xx hub can not be detected by USB host

    Part Number: TUSB8041A 1: Check power on reset sequence waveform for 3.3v ,1/1v and GRSTz pin and see if it meets hub power on reset sequence timing 2: Check voltage on USB_VBUS pin and see if the voltage is around 0.5v 3: Check if the crystal is…

  • [FAQ] TMUXHS4212: When and how to AC coupling the passive MUX?

    Part Number: TMUXHS4212 When and how do I place the AC coupling capacitors for the passive MUX?

  • [FAQ] DS320PR810: Does redriver power consumption vary with data rate?

    Part Number: DS320PR810 Other Parts Discussed in Thread: DS160PR421 , DS160PR1601 , DS160PR410 , DS160PR810 , DS160PR412 , , DS320PR1601 , DS320PR410 , SN75LVPE5412 , SN75LVPE5421 Applicable to all TI PCIe redrivers for Gen 4: DS160PR410, DS160PR810…

  • [FAQ] TUSB8041A: Difference between TUSB804x USB3 hub family

    Part Number: TUSB8041A Other Parts Discussed in Thread: TUSB8041 , , TUSB8042A , TUSB8043A , TUSB8044A Over the time, TI TUSB804x USB3 hub family has been transitioned from USB3.0 to USB3.1, from TUSB8041 to TUSB8041A/8042A/8043A/8044A. Here is the…

  • [FAQ] How to enable snoop mode with HDMI re-driver/re-timer

    Part Number: TDP1204 Brief Overview of HDMI PHY: The HDMI physical layer is composed of 4 high-speed lanes, one Display Data Channel (DDC) which operates with I2C signaling, Hot Plug Detect (HPD) for device detection, Consumer Electronic Control …

  • [FAQ] DS560DF810: Explanation of Crosspoint and Gearbox Modes

    Part Number: DS560DF810 Other Parts Discussed in Thread: DS560DF410 , DS560DF810 and DS560DF410 offer a variety of crosspoint and gearbox modes which can be used for 1:2 fanout, channel crossing, and NRZ/PAM4 modulation conversion. In this thread, I will…

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