Clock sources for extended/deep sleep mode

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Sat, 2016-05-07 00:33
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lhsj81
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Clock sources for extended/deep sleep mode

Hi All,

I am currently evaluating the DA14580 and would like to find out the requirements for the external 32kHz.

数据表州32 khz外部osc is used as the clock of the extended/deep sleep modes. If I plan on using this in beacon only mode (sleep power is critical), would I be able to achieve this using the internal 32kHz osc only?

Thanks,
Louis

Keywords:
32kHz external crystal
Device:
DA14580
Sat, 2016-05-07 16:35
Gongyu_Dialog
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加入:2016-04-27 07:07
generally, we prefer to use

generally, we prefer to use external 32K osc.

32KHz Oscillator：
No limits on connection interval time.
No limits on temperature change slope

Internal RCX20:
Temperature change limited to max. 5°C/min
Connection interval time limited to max. 2 sec
need to calibrate each time of connection interval

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