Part Number: TUSB2077A Hello TI Support Team,
I am designing a self-powered USB hub based on the TUSB2077A controller.
According to the datasheet (Section 8.3.2, "Clock Generation"), the recommended maximum ESR for a 6MHz crystal is 50 OHM . However…
Part Number: TUSB2077A Other Parts Discussed in Thread: TPS2044 , Hi,
The TUSB2077A chip is designed to enable peripheral charging only if USB Host is connected (/PWRON signals control the dedicated power switches - TPS2044).
We would like to enable…
Part Number: TUSB2077A Hi Sir,
Our upstream is connected directly to the USB port of the Intel CPU. We are currently unable to measure the signal quality because there is no signal present during measurement. I noticed that the datasheet includes eye…
Part Number: TUSB2077A USB_HUB.pdf
Hello,
I have a question about pin 8 (GANGED/EEDATA). We have configured the hub to have downstream ports self powered and not hub powered. Also, there will be no EEPROM. Can this pin just be left unconnected? Or…
Part Number: TUSB2077A I am designing a 20 port USB hub to expand the capabilites of a host controller. I have attached the USB hub portion of the schematic for a review, if possible.
The hub is self powered by a 5V, 4A capable wall adapter.
The 20…
Part Number: TUSB2077A Other Parts Discussed in Thread: TPS2044B , Tool/software: hello team,
I have used TUSB2077A in my design and i have used TPS2044B power switches for OCP/Load enable. During overload, the TPS2044B raises OCP and the HUB pulls…
Part Number: TUSB2077A Other Parts Discussed in Thread: TPS2071 Tool/software: I am working with a device that supports high-speed and full-speed USB. I want to test this device working at full-speed USB, so I am looking for a USB hub board that works…
Part Number: TUSB2077A Tool/software: I am attempting to connect my TUSB2077A to RaspberryPi Compute Module4 running RaspberryPi OS. With no devices plugged in downstream, the OS see's the hub, but HUB_CFG only flashes high briefly (<1second), never staying…
Part Number: TUSB2077A Tool/software: I have implemented TUSB2077A Hub and I am having startup issues. When it starts properly, everything is working. But sometimes it will not start no matter how many resets and reboots. Then later it works again.
…
