I've found these chips but a lot (all?) of them require a large purchase order and an NDA. I presume because of the encoding or something silly. I believe the H

I've found these chips but a lot (all?) of them require a large purchase order and an NDA. I presume because of the encoding or something silly. I believe the HD Radio tech is obnoxiously patent encumbered. Meanwhile AM/FM chips are dirt cheap. C'est la vie.