EVB72016
433MHz FSK/ASK Transmitter
Evaluation Board Description
Document Content
1
Theory of Operation...................................................................................................3
1.1
1.2
General............................................................................................................................. 3
Block Diagram .................................................................................................................. 3
2
Functional Description ..............................................................................................3
2.1
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
Clock Output..................................................................................................................... 6
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10 Timing Diagrams .............................................................................................................. 6
3
50Ω Connector Board Circuit Diagram.....................................................................7
3.1
3.2
3.3
Board Component Values ................................................................................................ 7
50Ω Connector Board PCB Top View .............................................................................. 8
Board Connection............................................................................................................. 8
4
5
6
Evaluation Board Layout...........................................................................................9
Board Variants............................................................................................................9
Package Description................................................................................................10
6.1
6.2
Soldering Information ..................................................................................................... 10
Recommended PCB Footprints...................................................................................... 10
7
Disclaimer.................................................................................................................12
3901272016 01
Rev. 004
Page 2 of 12
EVB Description
June/07
MELEXIS [ Melexis Microelectronic Systems ]
