16M crystal noise filter

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Last post

Tue, 2016-03-08 09:26

#1

Jda

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16M crystal noise filter

Hi all,

What is the purpose of the 16M crystal noise filter (register CLK_16M_REG, bit 9 XTAL16_NOISE_FILT_ENABLE) ? This is disabled by default and as far as I can tell it is never enabled in the code.

Does enabling this filter improve stability of the crystal under certain circumstances? Any known side-effects?

Thanks,
Jda

Device:

DA14580

Tue, 2016-03-08 16:46

#2

MT_dialog

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加入:2015-06-08 34

Hi Jda,

Hi Jda,

Activating this bit would be beneficial against crosstalk, and a slight phase shift would be the consequence. It has no impact on the stability of the XTAL, and its not used in the SDK.

Thanks MT_dialog

Wed, 2016-03-09 08:02

#3

Jda

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加入:2015-04-24 10:43

Hi MT_dialog,

Hi MT_dialog,

Thanks for your helpful answer.