EVB71120_15 Datasheet, PDF (2/18 Pages) Melexis Microelectronic Systems – 300 to 930MHz Receiver Evaluation Board Description

EVB71120
300 to 930MHz Receiver
Evaluation Board Description
Document Content
1 Theory of Operation...................................................................................................3
1.1 General........................................................................................................................... 3
1.2 Technical Data Overview ................................................................................................ 3
1.3 Block Diagram ................................................................................................................ 4
1.4 Operating Modes ............................................................................................................ 5
1.5 Frequency Range ........................................................................................................... 5
1.6 LNA Selection ................................................................................................................. 5
1.7 External IF2 Selection..................................................................................................... 5
1.8 Demodulation Selection .................................................................................................. 5
1.9 Data Slicer ...................................................................................................................... 5
2 Frequency Planning...................................................................................................6
2.1 Calculation of Frequency Settings .................................................................................. 7
2.2 Standard Frequency Plans ............................................................................................. 8
2.3 433/868MHz Frequency Diversity ................................................................................... 8
3 Dual-Channel Application Circuits for FSK & ASK Reception ...............................9
3.1 Peak Detector Data Slicer............................................................................................... 9
3.1.1 Component Arrangement Top Side (Peak Detection Data Slicer, IF2 = 10.7MHz) ....................10
3.1.2 Component Arrangement Top Side (Peak Detection Data Slicer, IF2 = 455kHz) ......................11
3.2 Averaging Data Slicer Configured for-Bi Phase Codes ................................................. 12
3.2.1 Component Arrangement Top Side (Averaging Data Slicer, IF2 = 10.7MHz).............................13
3.3 Component List for Dual-Channel Application............................................................... 14
3.4 PCB Layouts for Antenna Space Diversity .................................................................... 15
4 Board Variants..........................................................................................................15
5 Package Description................................................................................................16
5.1 Soldering Information.................................................................................................... 16
6 Reliability Information .............................................................................................17
7 ESD Precautions ......................................................................................................17
8 Disclaimer .................................................................................................................18
39012 71120 01
Rev. 006
Page 2 of 18
EVB Description
Nov/15