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Loop Filter Design for STUW81300 with 10MHz Detector Frequency.

Timothy Luo
Associate II

The Evaluation Board for STUW81300 Loop Filter was designed for 50MHz detector frequency. We will use 10MHz detector frequency. Can we still use the same Loop Filter as in EVB?

If we can not, how can we design the Loop Filter (with same 60KHz loop bandwidth, ~55degree loop phase-margin, 3mA charge-pump) with 10MHz detector frequency?

We want to generate stable 16GHz RF signal from STUW81300 chip with 10MHz reference clock.

Thank you in advance.

Regards,

Tim

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