VS1053 Output Resistors?

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bayviewboom
Senior User
Posts: 66
Joined: Wed 2019-11-27 9:49

VS1053 Output Resistors?

Post by bayviewboom » Tue 2020-01-07 9:13

Hi

Some youtube video showed someone added "output resistors to protect the output" on a VS1053 board.
Any ideas what that's about?

thx

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pasi
VLSI Staff
Posts: 1730
Joined: Thu 2010-07-15 16:04

Re: VS1053 Output Resistors?

Post by pasi » Tue 2020-01-07 11:05

It's hard to say without knowing where they were added.

If in series with the output, they limit short-circuit current during headphone plug insertion. (While inserting a plug, it physically short-circuits some of the contacts.) -- This is as much to protect the power supply as it is to protect the analog outputs.
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