Sony h.ear on 3 (WH-H910N) FCC Teardown
The FCC internal photos for the upcoming h.ear on 3 have become available for viewing. As with most FCC internal photos, the quality is poor and not always great, but some information and details can be found in the filing.
As with all teardowns, the first thing I look for is the internal code and we are in luck it is printed on this board, HDX-2940. Back in August I wrote about a new upcoming model, the HDX-2941. Checking the Bluetooth certification site (no longer active site) brings up the certification for the new WH-H910N, but the code on that page is the unknown HDX-2941 and not HDX-2940. We can automatically exclude the WI-1000XM2 since that has the code HDX-2928, so the only device left is the WH-H810 or h. ear on 3 mini.
Next up in this photo, Sony has highlighted something interesting, a chip with the markings CXD90050. This chip has no description as anything specific, so why Sony highlighted is intriguing. For anyone who read my WI-1000XM2 post where I compare it to the previous model will notice a similar chip there as well. In that post I identified the chip as the QN1 when comparing to the press photos from Sony.
In that post, I originally labelled the QN1 in the WI-1000XM2 as the CXD98050, or CXD96050, but the photo is not the best quality so my interpretation is likely wrong and I do believe the text is CXD90050 just like in the WH-H910N. So does this mean the new WH-H910N also uses the QN1 for noise cancellation? Good question, nothing was mentioned in the press release and the product pages only mentions dual noise sensor technology.
