Custom USB 3.0 Hub

Quick Write-Up

• • Design Features 1 Upstream USB-C 3.0 Port, 2 downstream USB-C 3.0 Ports, 2 downstream USB-A 3.0 Ports and 2 downstream HDMI 1.4 ports.
• • Designed around a TUSB8041-Q1 Hub IC, STDP4320BA Dp Alt Mode 1:2 Splitter, TPS65987D USB-C PD Controller, and HD3SS460 Mux Controller
• • Routed with attention to controlled-impedance routing, length tuning, and isolation between ports for signal integrity at SuperSpeed speeds.
• • Specific differential impedence of 90Ω for USB-C and USB-A 3.0 data lines and 100Ω differential impedance for HDMI 1.4 lines, with careful length tuning to meet timing requirements and maintain signal integrity.
• • ESD and surge protection components placed strategically at connectors and along critical paths for safe operation and bring up.