Audio transceiver AD2426 series
programmabledatabidirectional

audio transceiver
audio transceiver
audio transceiver
audio transceiver
audio transceiver
audio transceiver
audio transceiver
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Characteristics

Applications
audio
Other characteristics
data, analog, bidirectional, programmable

Description

A2B BUS FEATURES Line topology Single master, multiple slave Up to 15 m between nodes and up to 40m overall cable length Communication over distance Synchronous data Multichannel I2S/TDM to I2S/TDM Synchronous clock, phase aligned in all nodes Low latency slave to slave communication Control and status information I2C to I2C GPIO and interrupt Bus power or local power slave nodes Configurable with SigmaStudio graphical software tool AEC-Q100 qualified for automotive applications A2B TRANSCEIVER FEATURES Configurable A2B bus master or slave operation I2C interface 8-bit to 32-bit multichannel I2S/TDM interface Programmable I2S/TDM data rate Up to 32 upstream and 32 downstream channels PDM interface Programmable PDM clock rate Up to 4 high dynamic range microphone inputs Simultaneous reception of I2S data with up to 4 PDM microphones Unique ID register for each transceiver Crossover or straight-through cabling Programmable settings to optimize EMC performance The Automotive Audio Bus (A2B®) provides a multichannel, I2S/TDM link over distances of up to 15 m between nodes. It embeds bidirectional synchronous pulse-code modulation (PCM) 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 and/or consume time division multiplexed (TDM) channel content. A2B is a single-master, multiple-slave system where the transceiver at the host controller is the master. The master generates clock, synchronization, and framing for all slave nodes.

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