AD2428KCPZ

AD2428 is an automotive audio bus (A²B) transceiver. It embeds bidirectional synchronous pulse-code modulation data, 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 and/or consume time division multiplexed channel content. A²B is a single main node, multiple subordinate node system where the transceiver at the host controller is the main node. The main node generates clock, synchronization, and framing for all subordinate nodes. The main A²Bss transceiver is programmable over a control port for configuration and read back. Application includes audio communication link, microphone arrays, beamforming, hands free and in car communication active and road noise cancellation, audio/video conferencing systems.

• Line topology, single main node, multiple subordinate nodes
• Communication over distance, synchronous data, multichannel I²S/TDM to I²S/TDM
• Synchronous clock, phase aligned in all nodes, low latency node to node communication
• Control and status information I²C to I²C, GPIO and interrupt
• Bus or local power subordinate nodes, configurable with sigma studio/sigma studio+ software tool
• Configurable A²B bus main node or subordinate node, programmable via I²C interface
• 8-bit to 32bit multichannel I²S/TDM interface, programmable I²S/TDM data rate
• Up to 32 upstream and 32 downstream channels, PDM interface
• 32-lead LFCSP package, junction temperature range from 0°C to 105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party