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EVB7122 Datasheet(PDF) 2 Page - Melexis Microelectronic Systems

Part # EVB7122
Description  27 to 930MHz Transceiver Evaluation Board Description
Download  24 Pages
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Manufacturer  MELEXIS [Melexis Microelectronic Systems]
Direct Link  http://www.melexis.com
Logo MELEXIS - Melexis Microelectronic Systems

EVB7122 Datasheet(HTML) 2 Page - Melexis Microelectronic Systems

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EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
39012 07122 02
Page 2 of 24
EVB Description
Rev. 005
June/07
Document Content
1
Theory of Operation ...................................................................................................3
1.1
General ............................................................................................................................. 3
1.2
Technical Data Overview.................................................................................................. 3
1.3
Note on ASK Operation .................................................................................................... 3
1.4
Block Diagram .................................................................................................................. 4
1.5
User Mode Features ......................................................................................................... 4
2
Description of User Modes ........................................................................................5
2.1
Stand-alone User Mode Operation ................................................................................... 5
2.1.1
Frequency Selection .................................................................................................................... 5
2.1.2
Operation Mode ........................................................................................................................... 5
2.1.3
Modulation Type .......................................................................................................................... 6
2.1.4
LNA Gain Mode ........................................................................................................................... 6
2.2
Programmable User Mode Operation............................................................................... 6
2.2.1
Serial Control Interface Description ............................................................................................. 6
3
Register Description ..................................................................................................7
3.1
Register Overview ............................................................................................................ 8
3.1.1
Default Register Settings for FS0, FS1........................................................................................ 8
3.1.2
A – word ....................................................................................................................................... 9
3.1.3
B – word ..................................................................................................................................... 10
3.1.4
C – word..................................................................................................................................... 11
3.1.5
D – word..................................................................................................................................... 12
4
Application Circuits .................................................................................................13
4.1
FSK Application Circuit Programmable User Mode (internal AFC option)...................... 13
4.1.1
Board Component Values for FSK Reception ........................................................................... 14
4.1.2
Component Arrangement Top Side for FSK Reception ............................................................ 15
4.2
ASK Application Circuit Programmable User Mode (normal data slicer option) ............. 16
4.2.1
Board Component Values for ASK (normal data slicer option) ................................................. 17
4.2.2
Component Arrangement Top Side for ASK Reception (normal data slicer option) ................. 18
4.3
ASK Application Circuit with Peak Detector Option ........................................................ 19
4.3.1
Board Component Values for ASK (peak detector option)........................................................ 20
4.3.2
Component Arrangement Top Side for ASK Reception (peak detector option)........................ 21
5
Evaluation Board Layouts .......................................................................................22
6
Board Variants..........................................................................................................22
7
Package Description ................................................................................................23
7.1
Soldering Information ..................................................................................................... 23
8
Disclaimer .................................................................................................................24


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