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TUSB212

SLLSEX5A – AUGUST 2017 – REVISED SEPTEMBER 2017

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10 Layout

10.1 Layout Guidelines

The USB signal trace must not be broken when placing TUSB212. Thus, even with the TUSB212 powered down,

or not populated, the USB link is still fully operational. To avoid the need for signal vias, it is highly recommend to

route the High Speed traces directly underneath the TUSB212 package, as illustrated in the PCB land pattern

shown in Figure 22.

Although the land pattern shown below has matched trace width to pad width, optimal impedance control is

based on the user's own PCB stack-up. It is recommended to maintain 90

Ω differential routing underneath the

device.

All dimensions are in millimetres (mm).

10.2 Layout Example

Figure 22. DP and DM Routing Underneath Device Package