AD2437KCPZY

Overview

The AD2437KCPZY is a consumer-grade A2B transceiver by Analog Devices Inc., designed for multichannel I2S/TDM links up to 30 meters between nodes. It embeds bidirectional synchronous PCM data, clock, and synchronization signals onto a single-pair differential cable. The device supports up to 51 channels of 16-bit or 32 channels of 24-bit data. Operating within a supply voltage range of 1.7V to 1.98V and an operating temperature of 0°C to 105°C (TJ), it features GPIO, I2C, I2S, PDM, SPI, and TDM interfaces in a 48-LFCSP package.

Feature Summary

• Supports single main node with up to 16 subordinate nodes over distances up to 30m per link and 300m total.
• Provides up to 51 channels of 16-bit or 32 channels of 24-bit multichannel I2S/TDM data exchange.
• Includes four PDM inputs for high dynamic range microphones and configurable I2S/TDM crossbar switch.
• Features integrated line diagnostics for fault detection including open wires, shorts, and reverse connections.

Applications

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

Procurement Notes

Verify the specific ordering suffix KCPZY against the manufacturer's current datasheet to confirm package type and grade. Confirm availability status as distribution listings may indicate limited stock or regional sales restrictions. Ensure the component meets the required consumer grade specifications for the intended application environment.

Selection Notes

Select this transceiver for applications requiring long-distance digital audio transmission via single-pair cabling. It is suitable for systems needing direct connection to DSPs, FPGAs, or digital microphones without external codecs. Consider the LVI mode if 3.3V input support is required at the VIN pin.

Part Context

The AD2437 belongs to the A2B Audio Bus family developed by Analog Devices. It serves as a core component for building scalable audio networks that integrate control, power, and high-fidelity audio over standard cabling. This model specifically targets consumer-grade implementations compared to automotive variants.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing network topology before considering alternative transceivers from the same product family.