AD2428KCPZ

Overview

The AD2428KCPZ is an Automotive Audio Bus (A2B) transceiver manufactured by Analog Devices Inc. It supports configurable master or slave operation within a single-master, multiple-slave topology. The device features an I2C control interface and an 8-bit to 32-bit multichannel I2S/TDM data interface with up to 32 upstream and 32 downstream channels. It includes a PDM interface for connecting up to four high dynamic range microphones. Packaged in a 32-LFCSP (5x5) case, it operates at supply voltages of 3V to 3.63V and is qualified for automotive applications.

Feature Summary

• Configurable A2B bus master or slave operation
• Multichannel I2S/TDM interface supporting up to 32 upstream and 32 downstream channels
• PDM interface for up to 4 high dynamic range microphone inputs
• I2C interface for configuration and remote register access

Applications

• Audio communication link
• Microphone arrays
• Beamforming
• Hands free and in car communication
• Active and road noise cancellation

Procurement Notes

Verify the specific suffix KCPZ against official documentation to confirm package type and temperature grade. Ensure compatibility with the host system's I2C addressing and power supply requirements before procurement.

Selection Notes

Select this component for systems requiring A2B connectivity with local audio processing. Confirm if master or slave functionality is needed, as other family members like the AD2420 lack master capabilities. Verify that the 32-LFCSP package fits the PCB layout constraints.

Part Context

This part belongs to the AD2420(W)/AD2426(W)/AD2427(W)/AD2428(W)/AD2429(W) series. It is designed for automotive environments and supports line topology with distances up to 15 meters between nodes. The series allows daisy-chained nodes for synchronous audio transmission.

Replacement Considerations

The AD2428WCCSZ-RL is a related variant within the same family. Check datasheet specifications for differences in operating temperature range and packaging format before substitution.