RFM219SW

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Rev 1.0 | Page 3/35

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Table of Contents

1. Electrical Characteristics............................................................................................................................................ 4

1.1

Recommended Operation Conditions ................................................................................................................... 4

1.2

Absolute Maximum Ratings................................................................................................................................... 4

1.3

Receiver Specifications ......................................................................................................................................... 5

1.4

Crystal Oscillator ................................................................................................................................................... 6

1.5

LPOSC .................................................................................................................................................................. 6

2. Pin Descriptions .......................................................................................................................................................... 7

3. Typical Performance Characteristics....................................................................................................................... 8

4. Typical Application Schematic ................................................................................................................................. 9

5. Functional Descriptions............................................................................................................................................ 10

5.1

Overview ............................................................................................................................................................. 10

5.2

Modulation, Frequency and Symbol Rate ........................................................................................................... 10

5.3

Embedded EEPROM and RFPDK ...................................................................................................................... 11

5.4

All Configurable Options ..................................................................................................................................... 11

5.5

Internal Blocks Description.................................................................................................................................. 15

5.5.1

RF Front-end and AGC ............................................................................................................................ 15

5.5.2

IF Filter..................................................................................................................................................... 15

5.5.3

RSSI ........................................................................................................................................................ 15

5.5.4

SAR ADC ................................................................................................................................................. 15

5.5.5

Crystal Oscillator...................................................................................................................................... 15

5.5.6

Frequency Synthesizer ............................................................................................................................ 16

5.5.7

LPOSC..................................................................................................................................................... 16

5.5.8

OOK Demodulation.................................................................................................................................. 16

5.5.9

(G)FSK Demodulation.............................................................................................................................. 16

5.6

SPI Interface ....................................................................................................................................................... 17

5.6.1

Register Read & Write Operation............................................................................................................. 17

5.6.2

FIFO Read Operation .............................................................................................................................. 18

5.7

Operation States, Timing and Power .................................................................................................................. 19

5.7.1

Power-Up Sequence................................................................................................................................ 19

5.7.2

Operating States ...................................................................................................................................... 19

5.8

GPOs and Interrupts ........................................................................................................................................... 21

5.9

Data Handling ..................................................................................................................................................... 23

5.9.1

Direct Mode ............................................................................................................................................. 23

5.9.2

Buffer Mode ............................................................................................................................................. 24

5.9.3

Packet Mode ............................................................................................................................................ 24

5.10 Receiver Operation Control................................................................................................................................. 25

5.11 User Registers ................................................................................................................................................

26

5.11.1 Configuration Bank .................................................................................................................................. 26

5.11.2 Control Bank ............................................................................................................................................ 26

6. Ordering Information................................................................................................................................................. 33

7. Package Outline......................................................................................................................................................... 34

8. Contact Information .................................................................................................................................................. 35