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)
Price (1000+)
($ US)
1AD2429W Master Master only I2C Control and Status Bus, I2S Data A2B, I2C, I2S, PDM 50M 3 2.5k 3.7 9 $3.26 (AD2429WCCPZ01)
2AD2429 Master Master only I2C Control and Status Bus, I2S Data A2B, I2C, I2S, PDM 50M 3 2.5k 3.7 9 $2.88 (AD2429KCPZ)
3AD2428 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)
4AD2426 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)
5AD2420W 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)
6AD2420 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)
7AD2428W 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 $4.06 (AD2428WCCSZ01)
8AD2427W Slave Mid Line Capable I2C Control and Status Bus, I2S Data A2B, I2C, PDM 50M 11 2.5k 3.7 9 $3.36 (AD2427WCCSZ01)
9AD2426W 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)
10AD2427 Slave Mid Line Capable I2C Control and Status Bus, I2S Data A2B, I2C, PDM 50M 11 2.5k 3.7 9 $2.97 (AD2427KCPZ)
11AD2425W Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 11 2.5k 3.7 9-
12AD2422W Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 2 2.5k 3.7 9-
13AD2421W Slave End-Point Only I2C Control and Status Bus, I2S Data A2B 50 1 2.5k 3.7 9-
14AD2403 Master, Slave Mid-Point Capable I2C Control and Status Bus, I2S Data A2B 50 9 2.5k 3.7 9-