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RFM95 Arkusz danych(PDF) 45 Page - HOPE Microelectronics CO., Ltd. |
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RFM95 Arkusz danych(HTML) 45 Page - HOPE Microelectronics CO., Ltd. |
45 / 121 page Page 45 RFM95/96/97/98(W) Tel: + 86-755-82973805 Fax: + 86-755-82973550 E-mail: sales@hoperf.com http:/ / www.hoperf.com WIRELESS & SENSING PRELIMINARY DATASHEET It is therefore important to note that the setting of OokFixedThresh will be application dependant. The following procedure is recommended to optimize OokFixedThresh. Set RFM96/7/8 in OOK Rx mode Adjust Bit Rate, Channel filter BW Default OokFixedThresh setting No input signal Continuous Mode Monitor DIO2/DATA pin Increment OokFixedThresh Glitch activity on DATA ? Optimization complete Figure 14. Floor Threshold Optimization The new floor threshold value found during this test should be used for OOK reception with those receiver settings. Optimizing OOK Demodulator for Fast Fading Signals A sudden drop in signal strength can cause the bit error rate to increase. For applications where the expected signal drop can be estimated, the following OOK demodulator parameters OokPeakThreshStep and OokPeakThreshDec can be optimized as described below for a given number of threshold decrements per bit. Refer to RegOokPeak to access those settings. |
Podobny numer części - RFM95 |
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Podobny opis - RFM95 |
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