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Analog Devices Inc. AD2437 A2B® Transceivers

Analog Devices AD2437 A2B® Transceivers supply a multichannel, I2S/TDM link that is up to 30m lengths between nodes. The AD2437 embeds bidirectional synchronous pulse-code modulation (PCM) data (such as digital audio), clock, and synchronization signals onto a single-pair differential cable.

The ADI AD2437 A2B Transceivers support a direct point-to-point connection and facilitate multiple daisy-chained nodes at different locations. This feature contributes to and consumes time division multiplexed channel content.

Features

  • A2B BUS FEATURES
    • Line topology
      • Single main node, up to 16 subordinate nodes
      • Up to 30m between nodes and up to 300m overall cable length
    • Communication over distance
      • Synchronous data
        • Multichannel I2S/TDM to I2S/TDM
        • Clock synchronous, phase aligned in all nodes
        • Low-latency node-to-node communication
      • Control and status information I2C to I2C
      • GPIO over distance
    • Bus power or local power subordinate nodes
    • Configurable with SigmaStudio+ graphical software tool
  • BASELINE A2B TRANSCEIVER FEATURES
    • Configurable as A2B bus main node or subordinate node
    • Programmable via I2C and SPI interfaces
    • 8-bit to 32-bit multichannel I2S/TDM interface
      • I2S/TDM/PDM programmable data rate
      • Up to 51 channels of 16-bit data or 32 channels of 24-bit data between nodes
    • PDM inputs for up to 4 high dynamic range microphones on main or subordinate nodes
    • Support for receiving I2S/TDM and PDM data on the same node
    • Unique ID register for each transceiver
    • Support for crossover or straight-through cabling
  • AD2437 TRANSCEIVER ENHANCEMENTS
    • Mixed Signal
      • ADC monitoring of supply voltages
      • Supports 3.3V input at VIN in Low Voltage Input (LVI) mode
    • Digital
      • High-speed SPI (up to 10Mbps) over distance
      • Dedicated hardware reset pin
      • I2S/TDM crossbar switch
        • Flexible mapping of Tx/Rx TDM channel data to A2B slot
      • Support for I2C fast mode plus (1MHz)
      • Support for LED lighting control using 4 PWM outputs
      • 8 GPIO pins with configurable pin mapping

Applications

  • Conference room transducer nodes
  • Musical instrument connectivity
  • Distributed audio systems
  • Personal audio zones

Functional Block Diagram

Block Diagram - Analog Devices Inc. AD2437 A2B® Transceivers

Communication System Block Diagram

Block Diagram - Analog Devices Inc. AD2437 A2B® Transceivers
Application Circuit Diagram - Analog Devices Inc. AD2437 A2B® Transceivers

Evaluation Boards

Analog Devices Inc. EVAL-AD2437 Evaluation Boards

Assess various peripherals of AD2437 A2B transceivers.

Learn Moreabout Analog Devices Inc. EVAL-AD2437 Evaluation Boards View Productsrelated to Analog Devices Inc. EVAL-AD2437 Evaluation Boards
Paskelbta: 2024-04-29 | Atnaujinta: 2024-06-26