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#Interface FeaturesInterface ProtocolData Rate (max)
(bps)
Number of NodesESD Protection
(V)
Vsupply (min)
(V)
Vsupply (max)
(V)
Operating Temp RangeAutomotive RecommendedStatus
1AD2425W I2C Control and Status Bus, I2S Data A2B 50 11 2.5k 3.7 9 -40 to 105°C Yes Growth
2AD2422W I2C Control and Status Bus, I2S Data A2B 50 11 2.5k 3.7 9 -40 to 105°C Yes Growth
3AD2421W I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9 -40 to 105°C Yes Growth
4AD2403 I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9 -40 to 105°C No Growth
5AD2402W I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9 -40 to 105°C Yes Growth
6AD2401W I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9 -40 to 105°C Yes Growth
7AD2410W I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9 -40 to 105°C Yes Growth