AX5243 datasheet(2/65 Pages) ONSEMI

2 / 65 page

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AX5243

Table of Contents

1. Overview..................................................................................................... 5

1.1. Features ....................................................................................................... 5

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

2. Block Diagram............................................................................................. 7

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

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

4. Specifications............................................................................................ 10

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

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

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

Logic ...........................................................................................................13

4.3. AC Characteristics.........................................................................................14

Crystal Oscillator...........................................................................................14

Low-power Oscillator .....................................................................................14

RF Frequency Generation Subsystem (Synthesizer) ...........................................15

Transmitter ..................................................................................................18

Receiver Sensitivities.....................................................................................19

Receiver ......................................................................................................19

Receiver and Transmitter Settling Phases.........................................................21

Overall State Transition Times ........................................................................22

SPI Timing ...................................................................................................22

General Purpose ADC (GPADC) .......................................................................23

5. Circuit Description .................................................................................... 24

5.1. Voltage Regulators .......................................................................................25

5.2. Crystal Oscillator and TCXO Interface..............................................................26

5.3. Low Power Oscillator and Wake on Radio (WOR) Mode ......................................26

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