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AD2428WCCSZ-RL

A2B transceiver, automotive audio bus, LFCSP, ADI

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Manufacturer Part：

AD2428WCCSZ-RL

Package：

LFCSP (per specification)

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Description

Product Overview

The AD2428WCCSZ-RL from Analog Devices is an Automotive Audio Bus (A2B) transceiver IC that provides a low-latency, high-bandwidth digital audio network for automotive applications. As a main or subordinate node, it enables daisy-chain connectivity of multiple audio peripherals over a single unshielded twisted-pair cable.

Key Specifications

Type A2B (Automotive Audio Bus) Transceiver
Data Rate Up to 50 Mbps
Audio Channels Up to 32 channels per node
Latency < 50 us end-to-end
Cable Length Up to 15m between nodes, 40m total
Supply Voltage 1.8V / 3.3V
Interface I2S, TDM, I2C
Operating Temperature -40 to +105 deg C (W suffix)
Configuration Main or Subordinate node
Cable Unshielded twisted pair (UTP)

Features

  • A2B daisy-chain network eliminates dedicated audio wiring
  • Up to 32 audio channels per node with <50 us latency
  • Single unshielded twisted-pair cable for data and power
  • I2S/TDM audio interface for codec and DSP connection
  • I2C pass-through for remote peripheral control
  • Up to 10 nodes per bus, 40m total cable length
  • Phantom power delivery over the bus cable

Applications

  • Automotive distributed microphone arrays
  • Active noise cancellation in vehicles
  • In-car communication systems
  • Premium audio distribution networks
  • Emergency vehicle notification speaker systems

The AD2428WCCSZ-RL from Analog Devices is an Automotive Audio Bus (A2B) transceiver that enables daisy-chain digital audio networking over a single unshielded twisted-pair cable. Supporting up to 32 audio channels per node with less than 50 us end-to-end latency, it dramatically simplifies automotive audio wiring harnesses. The A2B bus can deliver phantom power to remote nodes, eliminating separate power cables for distributed microphones and speakers. The W suffix indicates automotive temperature range (-40 to +105 deg C). The AD2428 can operate as either a main node (bus controller) or subordinate node in a daisy-chain topology of up to 10 nodes over 40 meters total cable length.

The AD2428WCCSZ-RL implements the A2B protocol which uses a superframe structure transmitted over the twisted-pair bus at up to 50 Mbps. Each superframe contains downstream data (main to subordinates), upstream data (subordinates to main), and I2C control packets. The main node generates the bus clock and synchronizes all subordinate nodes. The physical layer uses a self-clocked encoding scheme that recovers clock and data from the received signal. Phantom power (up to 300 mA at 12V) is delivered over the bus cable using a DC bias on the differential pair, with DC blocking capacitors at each node. The I2C pass-through feature allows the main processor to configure remote I2C peripherals (codecs, amplifiers) through the A2B bus without additional wiring.

Pin Name Type Function
  • Automotive distributed microphone arrays
  • Active noise cancellation in vehicles
  • In-car communication systems
  • Premium audio distribution networks
  • Emergency vehicle notification speaker systems
Manufacturer Part Number Package Notes
ADI AD2429W LFCSP A2B transceiver variant with different pinout
ADI AD2426W LFCSP Lower channel count A2B node
Microchip MIC28517 QFN Alternative audio bus approach
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Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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5. Local Pickup in Shenzhen

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Professional Packaging Standards

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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