![Archimago's Musings: MEASUREMENTS: Computer USB port noise, USB hubs and the 8kHz PHY Microframe Packet Noise Archimago's Musings: MEASUREMENTS: Computer USB port noise, USB hubs and the 8kHz PHY Microframe Packet Noise](http://3.bp.blogspot.com/-scQ0TcCzPdM/VWjQR-0BWVI/AAAAAAAAEw8/B1Bxq-3rMq4/w1200-h630-p-k-no-nu/USB3250_block.gif)
Archimago's Musings: MEASUREMENTS: Computer USB port noise, USB hubs and the 8kHz PHY Microframe Packet Noise
![USB 2.0 PHY IP Core Device Host OTG Hub in TSMC, 28HPC, 40LP /LL, UMC, 40LP, 28HPC, SMIC 14SF, SF, 55LL, 40LL - T2M-IP USB 2.0 PHY IP Core Device Host OTG Hub in TSMC, 28HPC, 40LP /LL, UMC, 40LP, 28HPC, SMIC 14SF, SF, 55LL, 40LL - T2M-IP](https://t-2-m.com/images/uploads/2020/12/USB-2.0-PHY-IP-supplier-in-china.jpg)
USB 2.0 PHY IP Core Device Host OTG Hub in TSMC, 28HPC, 40LP /LL, UMC, 40LP, 28HPC, SMIC 14SF, SF, 55LL, 40LL - T2M-IP
![USB3300 USB High Speed PHY Board ULPI Interface features the USB3300 MIC2075 1BM onboard|Integrated Circuits| - AliExpress USB3300 USB High Speed PHY Board ULPI Interface features the USB3300 MIC2075 1BM onboard|Integrated Circuits| - AliExpress](https://ae01.alicdn.com/kf/H94d88d40af9641799b9ad2dca34d81adh/USB3300-USB-High-Speed-PHY-Board-ULPI-Interface-features-the-USB3300-MIC2075-1BM-onboard.jpg)
USB3300 USB High Speed PHY Board ULPI Interface features the USB3300 MIC2075 1BM onboard|Integrated Circuits| - AliExpress
![Electronics | Free Full-Text | Ethernet Packet to USB Data Transfer Bridge ASIC with Modbus Transmission Control Protocol Based on FPGA Development Kit Electronics | Free Full-Text | Ethernet Packet to USB Data Transfer Bridge ASIC with Modbus Transmission Control Protocol Based on FPGA Development Kit](https://www.mdpi.com/electronics/electronics-11-03269/article_deploy/html/images/electronics-11-03269-g001.png)