EVB7122 Melexis Company, EVB7122 Datasheet - Page 2

• Manufacturer Part Number: EVB7122
• Description: Evaluation Board For Th7122 And Th71221
• Manufacturer: Melexis Company

Document Content
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39012 07122 02
Rev. 006
1.1
1.2
1.3
1.4
1.5
2.1
2.2
3.1
4.1
4.2
4.3
6.1
Theory of Operation ...................................................................................................3
Description of User Modes........................................................................................5
2.1.1
2.1.2
2.1.3
2.1.4
2.2.1
Register Description ..................................................................................................7
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
Application Circuits .................................................................................................13
4.1.1
4.1.2
4.2.1
4.2.2
4.3.1
4.3.2
Evaluation Board Layouts .......................................................................................22
Package Description ................................................................................................23
Disclaimer .................................................................................................................24
General ............................................................................................................................. 3
Technical Data Overview.................................................................................................. 3
Note on ASK Operation .................................................................................................... 3
Block Diagram .................................................................................................................. 4
User Mode Features ......................................................................................................... 4
Stand-alone User Mode Operation ................................................................................... 5
Programmable User Mode Operation............................................................................... 6
Register Overview ............................................................................................................ 8
FSK Application Circuit Programmable User Mode (internal AFC option)...................... 13
ASK Application Circuit Programmable User Mode (normal data slicer option) ............. 16
ASK Application Circuit with Peak Detector Option ........................................................ 19
Soldering Information ..................................................................................................... 23
Frequency Selection .................................................................................................................... 5
Operation Mode ........................................................................................................................... 5
Modulation Type .......................................................................................................................... 6
LNA Gain Mode ........................................................................................................................... 6
Serial Control Interface Description ............................................................................................. 6
Default Register Settings for FS0, FS1........................................................................................ 8
A – word ....................................................................................................................................... 9
B – word ..................................................................................................................................... 10
C – word..................................................................................................................................... 11
D – word..................................................................................................................................... 12
Board Component Values for FSK Reception ........................................................................... 14
Component Arrangement Top Side for FSK Reception ............................................................ 15
Board Component Values for ASK (normal data slicer option) ................................................. 17
Component Arrangement Top Side for ASK Reception (normal data slicer option) ................. 18
Board Component Values for ASK (peak detector option)........................................................ 20
Component Arrangement Top Side for ASK Reception (peak detector option)........................ 21
Page 2 of 24
Evaluation Board Description
27 to 930MHz Transceiver
EVB7122
EVB Description
June/08