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
Product Selection Table

Automotive Audio Bus®

  Hold Shift Key for secondary sorting
SortOrderPart#Master/ SlaveNode CapabilityInterface FeaturesInterface ProtocolData Rate
(max)
(bps)
Number of NodesESD Protection
(V)
Vs+
(min)
(V)
Vs+
(max)
(V)
Automotive
1AD2428W Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 11 2.5k 3.7 9 Yes
2AD2427W Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 2 2.5k 3.7 9 No
3AD2426W Slave End-Point Only I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9 No
4AD2425W Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 11 2.5k 3.7 9 No
5AD2422W Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 2 2.5k 3.7 9 No
6AD2421W Slave End-Point Only I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9 No
7AD2403 Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9 No
8AD2402W Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 2 2.5k 3.7 9 No
9AD2401W Slave End-Point Only I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9 No
10AD2410W Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9 No