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EVB71121

300 to 930MHz Receiver

Evaluation Board Description

39012 71121 01

Page 2 of 18

EVB Description

Rev. 003

Jan/08

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

Demodulation Selection.................................................................................................... 5

1.8

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) ............................................ 10

3.2

Averaging Data Slicer Configured for-Bi Phase Codes .................................................. 11

3.2.1

Component Arrangement Top Side (Averaging Data Slicer) .................................................... 12

3.3

Component List for Antenna Space Diversity ................................................................. 13

3.4

PCB Layouts for Antenna Space Diversity ..................................................................... 14

4

Board Variants..........................................................................................................14

5

Package Description ................................................................................................15

5.1

Soldering Information ..................................................................................................... 15

6

Reliability Information .............................................................................................16

7

ESD Precautions ......................................................................................................16

8

Disclaimer .................................................................................................................18