AD2427WCCSZ01

Overview

The AD2427WCCSZ01 is an Automotive Audio Bus (A2B) transceiver from Analog Devices, designed for mid-line slave positions in a daisy-chained topology. It supports up to 32 upstream and downstream I2S/TDM channels with 8-bit to 32-bit resolution. The device integrates four PDM microphone inputs and operates on a 3V to 3.63V supply within a -40°C to 105°C temperature range. Packaged in a 32-LFCSP-SS (5x5), it enables low-latency synchronous audio communication over distances up to 15 meters between nodes.

Feature Summary

• Configurable A2B bus slave operation supporting up to 32 upstream and 32 downstream I2S/TDM channels
• Integrated PDM interface for up to four high dynamic range digital microphones
• Supports line topology with node-to-node cable lengths up to 15 meters
• Includes programmable settings to optimize EMC performance via LVDS transmit levels and spread-spectrum clocking

Applications

• Automotive audio communication links
• Microphone arrays and beamforming systems
• Hands-free and in-car communication modules
• Active and road noise cancellation units

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the host controller's I2C addressing requirements, as the AD2427W functions exclusively as a slave node in the A2B system architecture.

Selection Notes

Select this component when a mid-line slave position is required in an A2B network. It provides four PDM inputs and full I2S/TDM support, unlike the AD2420 or AD2426 which lack these features. Confirm that the design utilizes a single-master configuration, as this device cannot operate as the bus master.

Part Context

This part belongs to the AD242xW family of Automotive Audio Bus transceivers. It is distinct from the AD2428W and AD2429W, which are master-capable, and the AD2420W/AD2426W, which have limited channel or PDM capabilities. The AD2427W serves specifically as a versatile slave node with robust audio interface options.

Replacement Considerations

Public confirmed substitute part numbers: None identified.