Automotive Audio Bus
A2B Transceiver
AD2401/AD2402/AD2403/AD2410
A2B BUS FEATURES GENERAL DESCRIPTION Line topology
Single master, multiple slave
Up to 10 m between nodes and up to 40 m overall cable
length
Communication over distance
Synchronous data
Multichannel I2S/TDM to I2S/TDM
Clock synchronous, phase aligned in all nodes
Control and status Information
I2C to I2C
Phantom power or local power slave nodes
Configurable with SigmaStudioTM graphical software tool
Qualified for automotive applications The Automotive Audio Bus (A2B®) provides a multichannel,
I2S/TDM link over distances of up to 10 m between nodes. It
embeds bidirectional synchronous data (for example digital
audio), clock, and synchronization signals onto a single differential wire pair. A2B supports a direct point to point connection
and allows multiple, daisy-chained nodes at different locations
to contribute or consume time division multiplexed channel
content. A2B is a single-master, multiple-slave system where the
transceiver chip at the host controller is the master. It generates …
