EVB72005 Melexis Company, EVB72005 Datasheet - Page 2

• Manufacturer Part Number: EVB72005
• Description: 315mhz Fsk/ask Transmitter Evaluation Board Description
• Manufacturer: Melexis Company

Document Content
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39012 72005 01
Rev. 007
1.1
1.2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.1
3.2
3.3
4.1
4.2
4.3
5.1
5.2
5.3
7.1
7.2
Theory of Operation ...................................................................................................3
Functional Description ..............................................................................................3
Antenna Board Circuit Diagram................................................................................7
50
Evaluation Board Layouts .......................................................................................11
Board Variants..........................................................................................................12
Package Description ................................................................................................13
Disclaimer .................................................................................................................14
Ω
General............................................................................................................................. 3
Block Diagram .................................................................................................................. 3
Crystal Oscillator .............................................................................................................. 3
FSK Modulation ................................................................................................................ 4
Crystal Pulling................................................................................................................... 4
ASK Modulation................................................................................................................ 5
Output Power Selection.................................................................................................... 5
Lock Detection.................................................................................................................. 5
Low Voltage Detection...................................................................................................... 5
Mode Control Logic .......................................................................................................... 6
Timing Diagrams .............................................................................................................. 6
Board Component Values to Fig. 6 .................................................................................. 7
Antenna Board PCB Top View ......................................................................................... 8
Board Connection............................................................................................................. 8
Board Component Values to Fig. 7 .................................................................................. 9
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Board Connection........................................................................................................... 10
Antenna Board................................................................................................................ 11
PCB Loop Antenna Dimensions ..................................................................................... 11
Connector Board ............................................................................................................ 12
Soldering Information ..................................................................................................... 13
Recommended PCB Footprints ...................................................................................... 13
Connector Board Circuit Diagram.....................................................................9
Ω
Connector Board PCB Top View ............................................................................ 10
Page 2 of 14
315MHz FSK/ASK Transmitter
Evaluation Board Description
EVB72005
EVB Description
June/07