In the PMP4123, TI reference design of ISO721MD, R16 and C17 are inserted between DRV and IN of U5.
I do not understand fully how R16 and C17 work and why we need R16 and C17, and C17 can be increased to prevent signal distortion?
Right now I may have to use 220pF instead of 47pF to get clean output signal of U5. Thank you in advance for your information.
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