Automotive Audio Bus®
Analog Devices Automotive Audio Bus (A2B®) technology provides critical support to the vehicle infotainment systems of tomorrow. Our A2B products deliver high fidelity audio while increasing fuel efficiency, thanks to upward of 75% less cabling weight. The A2B portfolio helps enables multiple applications such as voice recognition and active noise cancellation. A2B is a single-master, multiple-slave system where the transceiver chip at the host controller is the master.
Applications:
• Audio ECU connectivity
• Hands-free microphone arrays
• In-car communications
• Active noise cancellation
Applications:
• Audio ECU connectivity
• Hands-free microphone arrays
• In-car communications
• Active noise cancellation
Product Selection Table
Latest Resources
Technical Articles Page
Product Highlight
Videos
- Analog Devices: Noise Reduction Algorithm (NR)
- Analog Devices: Acoustic Echo Cancellation Algorithm (AEC)
- A2B Eco-System for Next Generation Audio and Video Connectivity
- Innovative A2B/C2B Technologies Enable Autonomous Driving Systems
- A2B: Eco-System for Revolutionary Audio & Voice Connectivity
- SHARC Audio Module: Further Configuring the Bare Metal Framework
- SHARC Audio Module: The Structure of the Bare Metal Framework
- SHARC Audio Module: Using Shared Memory in the Bare Metal Framework
- SHARC Audio Module: About the Bare Metal Framework
- SHARC Audio Module: Installing and Configuring the Bare Metal Framework
- A²B Audio Bus and Network
- A2B-Connected, Next Generation Car Radio
- Automotive Audio Bus (A2B)
- 3rd-Generation A2B® Transceivers Offer Enhanced Configurability
Automotive Audio Bus®
| SortOrder | Part# | Master/ Slave | Node Capability | Interface Features | Interface Protocol | Data Rate (max) (bps) | Number of Nodes | ESD Protection (V) | Vs+ (min) (V) | Vs+ (max) (V) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AD2429W | Master | Master only | I2C Control and Status Bus, I2S Data | A2B, I2C, I2S, PDM | 50M | 3 | 2.5k | 3.7 | 9 | $3.26 (AD2429WCCPZ01) |
| 2 | AD2429 | Master | Master only | I2C Control and Status Bus, I2S Data | A2B, I2C, I2S, PDM | 50M | 3 | 2.5k | 3.7 | 9 | $2.88 (AD2429KCPZ) |
| 3 | AD2428 | Master, Slave | Mid and Last in Line Capable | I2C Control and Status Bus, I2S Data | A2B, I2C, I2S, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $3.93 (AD2428KCPZ) |
| 4 | AD2427 | Slave | Mid Line Capable | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $2.97 (AD2427KCPZ) |
| 5 | AD2426 | Slave | Last in Line only | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $2.72 (AD2426KCPZ) |
| 6 | AD2420W | Slave | Last in Line only | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 3 | 2.5k | 3.7 | 9 | $2.10 (AD2420WCCPZ01) |
| 7 | AD2420 | Slave | Last in Line only | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 3 | 2.5k | 3.7 | 9 | $1.85 (AD2420KCPZ) |
| 8 | AD2428W | Master, Slave | Mid and Last in Line Capable | I2C Control and Status Bus, I2S Data | A2B, I2C, I2S, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $4.46 (AD2428WCCSZ01) |
| 9 | AD2427W | Slave | Mid Line Capable | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $3.36 (AD2427WCCSZ01) |
| 10 | AD2426W | Slave | Last in Line only | I2C Control and Status Bus, I2S Data | A2B, I2C, PDM | 50M | 11 | 2.5k | 3.7 | 9 | $3.09 (AD2426WCCSZ01) |
| 11 | AD2425W | Master, Slave | Mid-Point Capable | I2C Control and Status Bus, I2S Data | A2B | 50M | 11 | 2.5k | 3.7 | 9 | $4.06 (AD2425WCCSZ) |
| 12 | AD2422W | Slave | Mid-Point Capable | I2C Control and Status Bus, I2S Data | A2B | 50M | 2 | 2.5k | 3.7 | 9 | $2.81 (AD2422WCCSZ) |
| 13 | AD2421W | Slave | End-Point Only | I2C Control and Status Bus, I2S Data | A2B | 50M | 1 | 2.5k | 3.7 | 9 | $2.81 (AD2421WCCSZ) |
| 14 | AD2403 | Master, Slave | Mid-Point Capable | I2C Control and Status Bus, I2S Data | A2B | 50M | 9 | 2.5k | 3.7 | 9 | - |
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