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Frequent questions

  • [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…

  • [FAQ] DS320PR1601: Receiver Detect Reset for x2 SSD Hot Plug Applications

    Part Number: DS320PR1601 Other Parts Discussed in Thread: DS320PR810 In this E2E FAQ, I am going to provide an overview of RX detect with specific information on the RX detect pulse width and frequency, then, I am going to discuss hot plug functionality…

  • [FAQ] Linear vs. Limited Mode in Redrivers

    Part Number: TDP1204 Other Parts Discussed in Thread: TMDS1204 Linear Mode: In linear mode the data received from the GPU’s transmitter is the data that will be sent out of the TX end of the redriver. This means that the GPU’s voltage swing, pre-emphasis…

  • [FAQ] TUSB216I: How do you create a system with a 10 meter passive cable using a USB2 redriver?

    Part Number: TUSB216I Other Parts Discussed in Thread: TUSB217A , TUSB216-Q1 , , TUSB216 , TUSB211A I want to create a system that can support USB2 while utilizing a 10 meter passive cable. Which redriver(s) should I use, and how should they be configured…

  • [FAQ] USB-C CC and PD controller differences

    Do I need to use a CC controller or PD controller for my USB-C application?

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