DESCRIPTION

· A2B and the A2B logo are registered trademarks of Analog Devices, Inc.
· Automotive Audio Bus A2B Transceiver models include AD2420(W), AD2426(W), AD2427(W), AD2428(W), and AD2429(W).
· Document version is Rev. C, with feedback information provided by Analog Devices.
· Information is believed to be accurate, but Analog Devices assumes no responsibility for its use or any patent infringements.
· Specifications may change without notice, and no patent licenses are granted implicitly.

FEATURES

· Line topology with single master and multiple slaves.
· Supports up to 15 m between nodes and 40 m overall cable length.
· Synchronous data communication with multichannel I2S/TDM.
· Low latency slave to slave communication with control and status information.
· Configurable with SigmaStudio graphical software tool.
· AEC-Q100 qualified for automotive applications.
· Configurable A2B bus master or slave operation with I2C interface.
· Supports 8-bit to 32-bit multichannel I2S/TDM interface with programmable data rate.
· Up to 32 upstream and downstream channels with PDM interface.
· Supports up to 4 high dynamic range microphone inputs.
· Unique ID register for each transceiver with programmable settings for EMC performance.

APPLICATIONS

· Audio communication link for microphone arrays and beamforming.
· Hands-free and in-car communication systems.
· Active and road noise cancellation.
· Audio/video conferencing systems.