EVB72013

433MHz

FSK/ASK Transmitter

39012 7201301

Page 2 of 12

EVB Description

Rev. 004

Nov/15

6.

Document Content

1.

Features ..........................................................................................................................................................................................1

2.

Ordering Information........................................................................................................................................................................1

3.

Application Examples ......................................................................................................................................................................1

4.

Evaluation Board Example...............................................................................................................................................................1

5.

General Description.........................................................................................................................................................................1

6.

Document Content...........................................................................................................................................................................2

7.

Theory of Operation.........................................................................................................................................................................3

7.1

General...................................................................................................................................................................................3

7.2

Block Diagram ........................................................................................................................................................................3

8.

Functional Description .....................................................................................................................................................................4

8.1

Crystal Oscillator.....................................................................................................................................................................4

8.2

FSK Modulation ......................................................................................................................................................................4

8.3

Crystal Pulling.........................................................................................................................................................................4

8.4

ASK Modulation ......................................................................................................................................................................5

8.5

Output Power Selection ..........................................................................................................................................................5

8.6

Lock Detection........................................................................................................................................................................5

8.7

Low Voltage Detection ............................................................................................................................................................5

8.8

Mode Control Logic.................................................................................................................................................................6

8.9

Timing Diagrams.....................................................................................................................................................................6

9.

50Ω Connector Board Circuit Diagram.............................................................................................................................................7

9.1

Board Component Values to Fig. 7 .........................................................................................................................................7

9.2

50Ω Connector Board PCB Top View .....................................................................................................................................8

9.3

Board Connection ...................................................................................................................................................................8

9.4

Evaluation Board Layouts .......................................................................................................................................................9

9.5

Board Variants ........................................................................................................................................................................9

10.

Package Description .................................................................................................................................................................10

10.1

Soldering Information............................................................................................................................................................10

11.

Standard information regarding manufacturability of Melexis products with different soldering processes .................................11

12.

ESD Precautions.......................................................................................................................................................................11

13.

Your Notes ................................................................................................................................................................................12

15.

Disclaimer .................................................................................................................................................................................13

16.

Contact Information...................................................................................................................................................................13