AD2401

PRODUCTION

Automotive Audio Bus^® (A²B^®) Transceiver; Single-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 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. The AD2401 can be configured as an end-node only.
Phantom power capability eliminates the need for local power supplies
Embedded diagnostics enable easy system level fault detection & correction
Fully configurable via SigmaStudio^™ graphical design environment allows Fast time to market
Qualified for automotive applications

The AD2401, 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 AD2401 is the lowest cost member of a family of devices that support direct point-to-point connections while allowing multiple nodes to be connected in a daisy-chain configuration.

The AD2401 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.