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Sat, 2016-07-23 23:07
#1
Craig Flanagan
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Antenna Question

Hello I am laying a board out with the DA14583 which will be quite similar to the IOT
board. I am looking at the antenna and can't determine what the component
R27 is. I am sending you the schematic of the board. Can you
help me? Thanks. Craig

附件:
PDF iconDA14583_IoT_Sensor_Board_Schematic (3).pdf
Device:
DA14583
Mon, 2016-07-25 17:01
MT_dialog
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Hi Craig,

Hi Craig,

You mean the 0 value resistor ?

Thanks MT_dialog

Wed, 2016-07-27 06:34
(Reply to #2)
Craig Flanagan
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OK yes I see now that is a

OK yes I see now that is a zero ohm resistor but I cant find the type of ceramic antenna used. I understand it is possibly from Johansson Technology but I don't have a part number as I don't see a BOM with the number on it for this IOT design. Thank you for your help.

Wed, 2016-07-27 16:46
MT_dialog
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Hi Craig,

Hi Craig,

You can find all those info in the UM-B-064 da14583 IoT sensor hardware reference application on page 13 paragraph 5.4 Antenna type.

Thanks MT_dialog