Audio Adaptor Board Output Impedance

S

Shun

Well-known member
Hi everyone,

We are currently developing a project using the Teensy 4.1 with the Audio Adaptor Board.
We would like to ask if anyone knows the output impedance and input impedance of the Audio Adaptor Board (headphone output and/or line output, if applicable). We have checked the documentation but could not find this information.

If there are any official specifications or design documents regarding the output impedance, we would greatly appreciate it if you could share them.

Thank you very much for your help!
 
Last edited:
The SGTL5000 datasheet I have (rev 7 from 2022) has this table:
1784702041501.jpeg
 
And note there are also capacitors in series with many signals, so DC and AC impedances are different!
 
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