Other Parts Discussed in Thread: TUSB2036
I have an application which will include two TUSB2036 hubs connected to PCs (upstream ports), and two connectors (USB A or USB C) for downstream peripherals. A microcontroller will decide which connectors will be connected to which hubs, so I am planning to put TS5USBC400 switches between them (with the 2-port side connected to the hubs and the 1-port side connected to the peripheral connectors).
For the DP/DM connections on the board (between the hub and switch ICs), are series resistors needed? The traces will be fairly short (approximately 1.5 inches, possibly shorter) and will be laid out as proper differential pairs with ground plane below and on the sides in order to maintain the 90 ohm impedance requirement for USB signaling.
In addition, the TS5USBC400 datasheet doesn't indicate what the series resistor values are needed for the sides of the switch which are connected off-board (to removable devices). What values should be used?
