Differential pair impedances - Raspberry Pi Forums

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hi,

know recommendations differential pair impedance usb, hdmi, , other signals need differential pair routing?

obliged,

-dan

hi dan,
dsandber wrote:anyone know recommendations differential pair impedance usb
usb lists 90 ohm between signal lines , 45 ohm towards gnd. both tolerances +-15%.
various sources can see estimation rs-485/422 operates typically 120 ohm.
don't have data in head related other differential protocols...


best wishes, ivan zilic.


raspberrypi



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