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From: Buzz McCool <buzz_mccool@yahoo.com>
Newsgroups: sci.electronics.design
Subject: Re: BAW
Date: Tue, 21 Jan 2025 15:52:05 -0800
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On 1/21/2025 10:56 AM, john larkin wrote:
> 
> This has got to crush the XO business. It looks like it's a single
> chip that's encapsulated like any other IC. XOs are complex and need
> hermetic cans.
> 

Looking through this BAW app note
https://www.ti.com/lit/an/snaa362/snaa362.pdf, I couldn't tell BAW 
devices would work at high altitude or in a vacuum. I have to ask 
because the "acoustic" in the name makes me want to make sure that some 
sort of atmosphere isn't needed.