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TUSB3410 and crystal ESR

Falingtrea
Intellectual 690 points
Other Parts Discussed in Thread: TUSB3410

Is the TUSB3410 sensitive to crystal ESR? We have a design that works but my CAD people want to change the crystal to a smaller size. The only issue is that the smaller crystal has an ESR of 80 ohms. The larger crystal being used right now has a ESR of 50 ohms.

  • 0
    TI__Guru 60870 points

    The TUSB3410 is not overly sensitive to crystal ESR, but 80 ohms of ESR is pretty high even for a low frequency like 12 MHz.  The highest ESR crystal that we typically use on our boards is 70 ohms.