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LMK62I0-100M: General Question on phase jitter specification

Yuanchen Zhu
Intellectual 340 points
Part Number: LMK62I0-100M

Dear TI Expert,

  Forgive me if I am asking a stupid question. Why do we generally use phase jitter in between 12kHz and 20MHz (this specific freq range) as a parameter to evaluate clock's phase noise or jitter performance?

  Hope someone can shed some light on it. Thanks.

Yuanchen

  • +1
    TI__Genius 11065 points

    Hi Yuanchen,

    As I understand, the 12 kHz and 20 kHz jitter integration bandwidth is considered a standard in the IC industry because many protocols such as PCIe and SATA use it. So it is common for devices to report their jitter/PN performance in this range to make it easy for customers to evaluate and compare them.

    Best,

    Evan Su