مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

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 clock, synchronization, and framing for all slave nodes. The master A²B chip is programmable over a control bus (I²C) for configuration and read back. An extension of this control bus is embedded in the A²B data stream allowing direct access of registers and status information on slave transceivers as well as I²C to I²C communication over distance.

Features

• Line topology: Single master, multiple slave. Up to 70 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 SigmaStudio graphical software tool
• Qualified for automotive applications
• Configurable as A²B bus master or slave (AD2403/AD2410)
• I²C interface
• 8 - bit to 32 - bit multichannel I2S/TDM interface
• Up to 32 upstream channels or combination with up to 32 downstream channels
• I2S/TDM or PDM microphone inputs

Applications

• Automotive audio communication link
• Communication network for: Microphones/speakers, Sensor/actuator, I2C peripherals