AX5042-868-Mod datasheet, PDF - EEWORLD Datasheet

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AX5042-868-Mod: DescriptionRF module and development tools module for ax5042; CategoryModule/solution; File Size1MB，45 Pages; ManufacturerAXSEM; Environmental Compliance

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AX5042-868-Mod Overview

RF module and development tools module for ax5042

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DATASHEET

AX5042

Version 2.3

Table of Contents

Overview .................................................................................................................................... 6

1.1. Features ........................................................................................................................................... 6

1.2. Applications .................................................................................................................................... 6

Block Diagrams ......................................................................................................................... 7

Pin Function Descriptions .......................................................................................................... 8

3.1. Pinout Drawing ............................................................................................................................... 9

Specifications .......................................................................................................................... 10

4.1. Absolute Maximum Ratings ........................................................................................................ 10

4.2. DC Characteristics ....................................................................................................................... 11

Supplies .......................................................................................................................................... 11

Logic ............................................................................................................................................... 12

4.3. AC Characteristics ....................................................................................................................... 13

Crystal Oscillator ........................................................................................................................... 13

RF Frequency Generation Subsystem (Synthesizer) ................................................................ 14

Transmitter...................................................................................................................................... 15

Receiver ......................................................................................................................................... 16

SPI Timing........................................................................................................................................ 18

Wire Mode Interface Timing........................................................................................................ 18

Circuit Description ................................................................................................................... 19

5.1. Crystal Oscillator........................................................................................................................... 20

5.2. SYSCLK Output.............................................................................................................................. 20

5.3. PWRUP Input.................................................................................................................................. 20

5.4. RESET_N Input ................................................................................................................................ 21

5.5. DATA Input/Output and DCLK Output ..................................................................................... 21

5.6. RF Frequency Generation Subsystem....................................................................................... 22

VCO ................................................................................................................................................ 22

Version 2.3

Datasheet AX5042

Table of Contents

VCO Auto-Ranging ...................................................................................................................... 22

Loop Filter and Charge Pump .................................................................................................... 23

Registers ......................................................................................................................................... 23

5.7. RF Input and Output Stage (ANTP/ANTN) ................................................................................ 23

LNA.................................................................................................................................................. 23

I/Q mixer......................................................................................................................................... 23

PA .................................................................................................................................................... 23

5.8. Analog IF Filter .............................................................................................................................. 24

5.9. Digital IF Channel Filter and Demodulator............................................................................... 24

Registers ......................................................................................................................................... 24

5.10.

5.11.

Encoder.................................................................................................................................... 25

Framing and FIFO ................................................................................................................... 25

HDLC Mode ................................................................................................................................... 26

RAW Mode..................................................................................................................................... 26

802.15.4 (ZigBee)........................................................................................................................... 27

5.12.

5.13.

5.14.

5.15.

5.16.

RX AGC and RSSI .................................................................................................................... 27

Modulator ................................................................................................................................ 28

Automatic Frequency Control (AFC) .................................................................................. 28

PWRMODE Register ................................................................................................................ 29

Serial Peripheral Interface (SPI) ............................................................................................ 31

SPI Timing........................................................................................................................................ 31

5.17.

Wire Mode Interface.............................................................................................................. 32

Wire Mode Timing ......................................................................................................................... 32

Register Bank Description ....................................................................................................... 33

6.1. Control Register Map................................................................................................................... 34

Application Information.......................................................................................................... 37

7.1. Typical Application Diagram ..................................................................................................... 37

7.2. Antenna Interface Circuitry........................................................................................................ 38

Version 2.3

Datasheet AX5042

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