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
- Synchronous data
- Bus power or local power subordinate nodes
- Configurable with SigmaStudio+ graphical software tool
- Line topology
- 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
- Mixed Signal
Applications
- Conference room transducer nodes
- Musical instrument connectivity
- Distributed audio systems
- Personal audio zones
Functional Block Diagram
Communication System Block Diagram
Evaluation Boards
Analog Devices Inc. EVAL-AD2437 Evaluation Boards
Assess various peripherals of AD2437 A2B transceivers.
Publicado: 2024-04-29
| Actualizado: 2024-06-26