MICRF112

Data Sheet

© 2024 Microchip Technology Inc. and its subsidiaries

DS70005554A - 2

Table of Contents

Introduction ..........................................................................................................................................................................1

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

Applications........................................................................................................................................................................... 1

1. Quick References ..........................................................................................................................................................3

1.1. Acronyms and Abbreviations ...........................................................................................................................3

2. System Overview .......................................................................................................................................................... 4

2.1. Typical Application ............................................................................................................................................ 4

2.2. Ordering Information........................................................................................................................................ 4

2.3. Pin Configuration .............................................................................................................................................. 4

2.4. Pin Description .................................................................................................................................................. 5

2.5. Absolute Maximum Ratings(1).......................................................................................................................... 5

2.6. Operating Ratings(2)........................................................................................................................................... 5

2.7. Electrical Characteristics(4)................................................................................................................................ 5

3. Test Circuit .....................................................................................................................................................................8

4. 50Ω Evaluation Board PCB Layout.............................................................................................................................. 9

5. Typical Characteristics Using MICRF112, 50 Ω Evaluation Board (MSOP)............................................................ 11

6. Functional Description ...............................................................................................................................................24

7. Application Information ............................................................................................................................................ 27

8. Demo Board PCB Layout ...........................................................................................................................................29

9. Evaluation Board Schematic ..................................................................................................................................... 31

10. Functional Description of the TX112-1 Evaluation Board.......................................................................................32

11. TX112-1-433.92 MHz ASK Bill of Materials .............................................................................................................. 33

12. TX112-1-315 MHz ASK Bill of Materials ....................................................................................................................34

13. FSK Operation .............................................................................................................................................................35

14. Package Information ..................................................................................................................................................36

15. Document Revision History .......................................................................................................................................42

Microchip Information....................................................................................................................................................... 43

The Microchip Website............................................................................................................................................... 43

Product Change Notification Service........................................................................................................................ 43

Customer Support.......................................................................................................................................................43

Microchip Devices Code Protection Feature............................................................................................................ 43

Legal Notice..................................................................................................................................................................43

Trademarks.................................................................................................................................................................. 44

Quality Management System.....................................................................................................................................45

Worldwide Sales and Service..................................................................................................................................... 46