SX1243 데이터 시트보기 (PDF) - Semtech Corporation

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SX1243

Low Cost Low Current Integrated Transmitter 310 to 928MHz Frequency Agile

Semtech Corporation 

SX1243

WIRELESS & SENSING

Table of contents

Section

DATASHEET

Page

1. Circuit Description ....................................................................................................................................................................... 3

1.1. General Description ............................................................................................................................................................ 3

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

1.3. Pin Description, DFN8 Encapsulation................................................................................................................................. 4

2. Electrical Characteristics ............................................................................................................................................................. 5

2.1. ESD Notice ......................................................................................................................................................................... 5

2.2. Absolute Maximum Ratings ................................................................................................................................................ 5

2.3. Operating Range ................................................................................................................................................................ 5

2.4. Electrical Specifications........................................................................................................................................................... 6

3. Digital Specification ..................................................................................................................................................................... 8

4. Application Modes of the SX1243 ............................................................................................................................................... 9

4.1. Transmitter Modes.............................................................................................................................................................. 9

4.2. Mode Selection Flowchart ................................................................................................................................................ 10

4.3. Application Mode: Power & Go ............................................................................................................................................. 11

4.4. Application Mode: Advanced ............................................................................................................................................ 11

4.4.1. Advanced Mode: Configuration................................................................................................................................. 11

4.4.2. Frequency Hopping Spread Spectrum...................................................................................................................... 11

4.5. Frequency Band Coverage ................................................................................................................................................... 12

4.6. Power Consumption ......................................................................................................................................................... 12

5. SX1243 Configuration ............................................................................................................................................................... 13

5.1. TWI Access....................................................................................................................................................................... 13

5.2. APPLICATION Configuration Parameters ........................................................................................................................ 15

5.3. FREQUENCY Configuration Parameters ......................................................................................................................... 15

5.4. Test Parameters ............................................................................................................................................................... 16

5.5. Status Parameters ............................................................................................................................................................ 16

5.6. Recovery Command .............................................................................................................................................................. 17

6. Application Information.............................................................................................................................................................. 18

6.1. Crystal Specification ......................................................................................................................................................... 18

6.2. Evaluation Module ............................................................................................................................................................ 18

6.3. NRESET Pin ..................................................................................................................................................................... 20

6.4. TX_READY Pin................................................................................................................................................................. 20

6.5. Low Power Optimization ................................................................................................................................................... 20

6.5.1. 2 Connections: CTRL, DATA .................................................................................................................................... 20

6.5.2. 3 Connections: CTRL, DATA, TX_READY ............................................................................................................... 20

7. SX1243 Packaging.................................................................................................................................................................... 21

7.1. Package Outline Drawing ................................................................................................................................................. 21

7.2. Thermal Impedance.......................................................................................................................................................... 21

7.3. Land Pattern ..................................................................................................................................................................... 22

7.4. Tape & Reel Specification ................................................................................................................................................ 22

8. Revision History ........................................................................................................................................................................ 23

SX1243, Rev 3, May 2012

©2012 Semtech Corporation

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