AD2402

PRODUCTION

Automotive Audio Bus^® Transceiver (A²B^®); Multi-Slave Serial Audio Interface with PDM Only

Data Sheet (Rev. SpE) Product Selection Table

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Overview

High bandwidth (50Mbps) digital bus support for up to 32 upstream and downstream audio channels
Data, control, plus power on a single wire pair provides system cost reduction using low-cost unshielded, twisted pair cable
Single-master, multiple-slave, line topology supports daisy chaining with zero processor intervention
Phantom power capability eliminates the need for local power supplies
Embedded diagnostics provide easy system level fault detection & correction
Fully configurable via SigmaStudio^™ graphical design environment promotes Fast time to market
Qualified for automotive applications

The Automotive Audio Bus^® (A²B^®) is an innovative technology that reduces system cost, weight, and design complexity by distributing audio and control data, together with clock and power over a single, low-cost, unshielded twisted pair cable. The AD2402 is a feature and cost reduced member of the A²B family specifically targeting connectivity to PDM-output microphones and sensors.

The AD2402 is targeted for use in wiring intensive applications where reducing the weight or complexity of existing cable harnesses is a primary system design objective. In the automotive segment, this weight reduction leads to significant improvements in fuel efficiency which is particularly important as car manufacturers are forced to comply with increasingly more stringent government standards.