Electronic Components Datasheet Search
Selected language     English  ā–¼

Delete All
ON OFF

Advanced Search

              





RFM95 Datasheet(PDF) 46 Page - HOPE Microelectronics CO., Ltd.

Part No. RFM95
Description  Low Power Long Range Transceiver Module
Download  121 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  HOPE [HOPE Microelectronics CO., Ltd.]
Homepage  https://www.hoperf.com/
Logo 

 46 page
background image
Page 46
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
Alternative OOK Demodulator Threshold Modes
In addition to the Peak OOK threshold mode, the user can alternatively select two other types of threshold detectors:
Fixed Threshold: The value is selected through OokFixedThresh
Average Threshold: Data supplied by the RSSI block is averaged, and this operation mode should only be used with
DC-free encoded data.
4.2.3.3. Bit Synchronizer
The bit synchronizer provides a clean and synchronized digital output based upon timing recovery information gleaned
from the received data edge transitions. Its output is made available on pin DIO1/DCLK in Continuous mode and can be
disabled through register settings. However, for optimum receiver performance, especially in Continuous receive mode, its
use is strongly advised.
The Bit Synchronizer is automatically activated in Packet mode. Its bit rate is controlled by BitRateMsb and BitRateLsb in
RegBitrate.
Raw demodulator
output
(FSK or OOK)
BitSync Output To
pin DATA and
DCLK in continuous
mode
DATA
DCLK
Figure 15. Bit Synchronizer Description
To ensure correct operation of the Bit Synchronizer, the following conditions have to be satisfied:
A preamble (0x55 or 0xAA) of at least 12 bits is required for synchronization, the longer the synchronization phase is the
better the ensuing packet detection rate will be.
The subsequent payload bit stream must have at least one edge transition (either rising or falling) every 16 bits during
data transmission.
The absolute error between transmitted and received bit rate must not exceed 6.5%.




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Download




Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights ReservedĀ© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl