EVB71120(2015) Просмотр технического описания (PDF) - Melexis Microelectronic Systems

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EVB71120
(Rev.:2015)

300 to 930MHz Receiver Evaluation Board Description

Melexis Microelectronic Systems  

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

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