AD2420W Datasheet | Analog Devices

FEATURES Line topology Single main node, multiple subordinate nodes Up to 15 m between nodes and up to 40 m overall cable length (see Table 9) munication over distance Synchronous data Multichannel I2S/TDM to I2S/TDM Synchronous clock, phase aligned in all nodes Low latency node to node munication Control and status information I2C to I2C GPIO and interrupt Bus power or local power subordinate nodes Configurable with Sigma Studio/Sigma Studio+ graphical software tool AEC-Q100 qualified for automotive applications A2B TRANSCEIVER FEATURES Configurable A2B bus main node or subordinate node Programmable via 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 APPLICATIONS Audio munication link Microphone arrays Beamforming Hands free and in car munication Active and road noise cancellation Audio/video conferencing systems IOVDD DVDD PLLVDD IRQ/IO0 I2C ADR1/IO1 ADR2/IO2 DTX0/IO3 DTX1/IO4 DRX0/IO5 DRX1/IO6 I2S/TDM PDM PDMCLK/IO7 BCLK SYNC VOUT1 VIN VOUT2 VREG1 VREG2 VSSN Figure 1. Functional Block Diagram BTRXVDD A2B TRX B (Towards Last Subordinate Node) DIAGNOSTICS A2B TRX A (Towards Main Node) ATRXVDD BP BCM BN SWP SENSE AP ACM AN A2B and the A2B logo are registered trademarks of Analog Devices, Inc. Rev. D Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its...