RF96 datasheet(3/121 Pages) HOPE

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RF96/97/98

Section

Page

4.2.13. Packet Mode ........................................................................................................................................... 66

4.2.14. io-homecontrol® Compatibility Mode ...................................................................................................... 74

4.3.

SPI Interface .................................................................................................................................................. 75

RF96/97/98 Analog & RF Frontend Electronics...................................................................................................... 76

5.1.

Power Supply Strategy .................................................................................................................................. 76

5.2.

Low Battery Detector ..................................................................................................................................... 76

5.3.

Frequency Synthesis ..................................................................................................................................... 76

5.3.1. Crystal Oscillator ....................................................................................................................................... 76

5.3.2. CLKOUT Output ........................................................................................................................................ 77

5.3.3. PLL ............................................................................................................................................................ 77

5.3.4. RC Oscillator ............................................................................................................................................. 77

5.4.

Transmitter Description ...............................................................................................................................78

5.4.1. Architecture Description ............................................................................................................................ 78

5.4.2. RF Power Amplifiers.................................................................................................................................. 78

5.4.3. High Power +20 dBm Operation ............................................................................................................... 79

5.4.4. Over Current Protection .........................................................................................................................80

5.5.

Receiver Description ...................................................................................................................................... 80

5.5.1. Overview ................................................................................................................................................... 80

5.5.2. Receiver Enabled and Receiver Active States.......................................................................................... 80

5.5.3. Automatic Gain Control In FSK/OOK Mode .............................................................................................. 80

5.5.4. RSSI in FSK/OOK Mode ........................................................................................................................... 81

5.5.5. RSSI in LoRaTM Mode ............................................................................................................................. 82

5.5.6. Channel Filter ............................................................................................................................................ 82

5.5.7. Temperature Measurement....................................................................................................................... 83

Description of the Registers.................................................................................................................................... 84

6.1.

Register Table Summary ............................................................................................................................... 84

6.2.

FSK/OOK Mode Register Map....................................................................................................................... 87

6.3.

Band Specific Additional Registers .............................................................................................................. 100

6.4.

LoRaTM Mode Register Map....................................................................................................................... 102

Application Information ........................................................................................................................................ 108

7.1.

Crystal Resonator Specification................................................................................................................... 108

7.2.

Reset of the Chip ......................................................................................................................................... 108

7.2.1. POR......................................................................................................................................................... 108

7.2.2. Manual Reset .......................................................................................................................................109

7.3.

Top Sequencer: Listen Mode Examples ...................................................................................................... 109

7.3.1. Wake on Preamble Interrupt ................................................................................................................... 109

7.3.2. Wake on SyncAddress Interrupt ...........................................................................................................112

7.4.

Top Sequencer: Beacon Mode .................................................................................................................115

7.4.1. Timing diagram........................................................................................................................................ 115

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