Page 2

RF68

Tel: + 86-755-82973805

Fax: + 86-755-82973550

E-mail: sales@hoperf.com http:/ / www.hoperf.com

Table of contents

Section

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.

Timing Characteristics ............................................................................................................................................. 7

4.

Application Modes of the RF68................................................................................................................................ 8

4.1.

Transmitter Modes ........................................................................................................................................... 8

4.2.

Mode Selection Flowchart................................................................................................................................ 9

4.3. Application Mode: Power & Go .......................................................................................................................10

4.4.

Application Mode: Advanced ......................................................................................................................... 10

4.4.1.

Advanced Mode: Configuration............................................................................................................... 10

4.4.2.

Frequency Hopping Spread Spectrum.................................................................................................... 10

4.5. Frequency Band Coverage ............................................................................................................................11

4.6.

Power Consumption....................................................................................................................................... 11

5.

RF68 Configuration................................................................................................................................................ 12

5.1.

TWI Access ......................................................................................................................................................12

5.2.

APPLICATION Configuration Parameters ..................................................................................................... 14

5.3.

FREQUENCY Configuration Parameters ...................................................................................................... 14

5.4.

Test Parameters (internal) ............................................................................................................................. 15

5.5.

Status Parameters ......................................................................................................................................... 15

5.6. Recovery Command .......................................................................................................................................16

6.

Application Information .......................................................................................................................................... 17

6.1.

Crystal Specification ...................................................................................................................................... 17

6.2.

Reference Design .......................................................................................................................................... 17

6.3.

NRESET Pin ................................................................................................................................................... 19

6.4.

TX_READY Pin............................................................................................................................................... 19

6.5.

Low Power Optimization ................................................................................................................................. 19

6.5.1.

2 Connections: CTRL, DATA ................................................................................................................... 19

6.5.2.

3 Connections: CTRL, DATA, TX_READY .............................................................................................. 19

7.

RF68 Packaging ..................................................................................................................................................... 20

7.1.

Package Outline Drawing ............................................................................................................................... 20

7.2.

Land Pattern ................................................................................................................................................... 20

This product datasheet contains a detailed description of the RF68 performance and functionality.