Clockworks authored an introductory A2B article series in aAudioXpress magazine in 2021. This magazine is a great resource for both professional and other audio designers. To check out the 4 part article series on their website click the image below.
Clockworks’ A2B and related products are designed for developers looking for fast evaluation, prototyping, and small volume deployment of A2B based systems. We made a little video to help out people with short attention spans…unfortunately it came out 2 seconds longer than the proverbial 30 second video.
ADI’s SigmaStudio tool for A2B topology set up can be controlled via a Windows COM API provided by Analog Devices. In this example we’ll create a small Python program to load an A2B configuration and then capture data from a temperature sensor connected to one of the nodes. This example is specifically focused on the […]
During prototyping and development it can be convenient to be able to send or receive audio from a host PC (Windows or Mac in this case) for injecting signals or for monitoring -particularly if using SigmaStudio for A2B topology modifying routing to accommodate testing is trivial. miniDSP offers an easy to use board based on […]
Clockworks has expanded its offering of modular A2B options with a new A2B to I2S/I2C/GPIO breakout module that allows customers to use their own preferred A2B connectors instead of the DuraClik connectors normally used on development boards. At the same time we’ve also introduced five plug-on modules to simplify hardware development – these plug-ons do […]
According to ADI’s AD2420(W)/6(W)/7(W)/8(W)/9(W) Automotive Audio Bus A2B Transceiver Technical Reference manual (ver 1.1) after power is applied and the chip comes out of power on reset (page 3-5): The A2B host then sets the A2B_CONTROL.MSTR bit in the transceiver before driving the SYNC pin (the input clock to a master-enabled transceiver’s PLL) at the […]
In testing some of the A2B hardware what appeared to be high jitter on the clocks was observed. While specialized scopes & software are available for making jitter measurements one was not available at the time measurements were needed. The basic idea is simple enough – measure the clock edges and see if they are […]
TechNote TN007 describes LTspice simulations used to illustrate the functioning of the ADI suggested analog network design for their AD242x series parts used for A2B interfacing. The LTspice files are available in a .zip that can be downloaded. These files do not include the detailed TDK common mode choke part model, which is available from […]
A quick system was needed where the Clockworks module based A2B node (operating as a slave) could be bus powered to avoid the need for a separate set of power wires. The final goal was to attach some GPIO signals to the module’s AD2428W GPIO lines. While no magic smoke was released, it didn’t work […]
