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TDA5051 for 24VAC app

Question asked by Pascal Bamford on Jan 12, 2019
Latest reply on Jan 15, 2019 by G.w. Sun

I've assembled the reference design (fig. 15 of datasheet) intended for 240VAC and am attempting to use it for an application (irrigation) on a 24VAC line. I'm a bit stuck on the design changes needed. The receiver detects bytes however the messages are highly corrupted. Is it a simple matter of changing the value of the first 47nF coupling capacitor for this lower voltage application? Thanks!

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