AD2437 datasheet(2/42 Pages) AD

2 / 42 page

Rev. 0

Page 2 of 42

July 2023

AD2437

TABLE OF CONTENTS

A2B Bus Features ..................................................... 1

Baseline A2B Transceiver Features ................................ 1

AD2437 Transceiver Enhancements ............................. 1

Applications ........................................................... 1

Table of Contents ..................................................... 2

Revision History ...................................................... 2

General Description ................................................. 3

A2B Bus Details .................................................... 3

I2C Interface ........................................................ 5

I2S/TDM Interface ................................................ 5

Pulse Density Modulation (PDM) Interface ................. 6

Data Slot Exchange Between Subordinate Nodes .......... 6

I2S TX/RX Crossbar ............................................... 6

Serial Peripheral Interface (SPI) ................................ 6

Pulse Width Modulation (PWM) Interface ................. 7

GPIO Over Distance .............................................. 7

Mailboxes ........................................................... 7

Line Diagnostics ................................................... 7

Clock Sustain State ................................................ 7

Dedicated Interrupt ............................................... 7

Support for Parallel A2B Buses ................................. 7

Voltage Monitor (VMTR) ADC ............................... 8

Power on Reset ..................................................... 8

Hardware Reset .................................................... 8

Low Voltage Input (LVI) Mode ................................ 8

Power Configurations ............................................ 8

Standby Mode ..................................................... 8

Unique ID .......................................................... 8

Support for Cabling .............................................. 8

Additional Information ......................................... 8

Specifications ......................................................... 9

Operating Conditions ............................................ 9

Electrical Characteristics ....................................... 10

VMTR ADC Specifications .................................... 15

Power Supply Rejection Ratio (PSRR) ...................... 16

Timing Specifications ........................................... 17

A2B Bus System Specification ................................. 26

Power-Up Sequencing Restrictions .......................... 28

PDM Typical Performance Characteristics ................ 28

Absolute Maximum Ratings ................................... 30

ESD Caution ...................................................... 30

Thermal Characteristics ........................................ 31

Test Circuits and Switching Characteristics ............... 31

Output Drive Currents ......................................... 32

Test Conditions .................................................. 33

Pin Configuration and Function Descriptions ............... 35

Designer Reference ................................................. 40

PCB Layout ....................................................... 40

Recommended PCB Footprint ................................ 40

Outline Dimensions ................................................ 41

Ordering Guide ..................................................... 42

REVISION HISTORY

7/2023—Revision 0: Initial Version

Analog Devices is in the process of updating documentation to

provide terminology and language that is culturally appropriate.

This is a process with a wide scope and will be phased in as

quickly as possible. Thank you for your patience.

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