Hi
I’m working on a digital sound module/instrument that needs to have 8 audio inputs and 4 audio outputs and I’m not so experienced with digital commands and stuff so I’m asking for some help
Then I found a perfect example from Paul that has 8in and 8out with a CS42448 audio codex and PCM1808 ADC (https://hackaday.io/project/2984-teensy-audio-library/log/187557-updated-cs42448-pcb-for-teensy-4x),
but since I will be using JLCPCB to make the pcbs and put SMD components, I had to find another CODEX for the 6in and 8out because they don't have CS42448 in stock and its a little expensive.
PCM3168 seems to be perfect substitute but i am not sure how to connect the PCM1808 with that one. In the example from Paul the PCM1808 seems to be connecting to some input pins on the CS42448. But the PCM3168 does not seem to have them.
I will be using TDM to communicate with the Codex and ADC and from some research I’m still not sure if I can just connect the pins from both chips together into the teensy or if I have to do something else.
I'll put my schematics with this post, it's just a beginning where I have just copied the datasheets and the CS42448 example.
So my question is : how should I connect them together into the teensy for them to work both with TDM?
And all recommendations and links to answers or just all knowledge is appreciated
Links to datasheets of the chips:
https://www.ti.com/lit/ds/symlink/p...https%3A%2F%2Fwww.ti.com%2Fproduct%2FPCM3168A
https://www.ti.com/lit/ds/symlink/p...=https%3A%2F%2Fwww.ti.com%2Fproduct%2FPCM1808
https://pdf1.alldatasheet.com/datasheet-pdf/view/119864/CIRRUS/CS42448.html
Here is the schematics from Pauls example:
I’m working on a digital sound module/instrument that needs to have 8 audio inputs and 4 audio outputs and I’m not so experienced with digital commands and stuff so I’m asking for some help
Then I found a perfect example from Paul that has 8in and 8out with a CS42448 audio codex and PCM1808 ADC (https://hackaday.io/project/2984-teensy-audio-library/log/187557-updated-cs42448-pcb-for-teensy-4x),
but since I will be using JLCPCB to make the pcbs and put SMD components, I had to find another CODEX for the 6in and 8out because they don't have CS42448 in stock and its a little expensive.
PCM3168 seems to be perfect substitute but i am not sure how to connect the PCM1808 with that one. In the example from Paul the PCM1808 seems to be connecting to some input pins on the CS42448. But the PCM3168 does not seem to have them.
I will be using TDM to communicate with the Codex and ADC and from some research I’m still not sure if I can just connect the pins from both chips together into the teensy or if I have to do something else.
I'll put my schematics with this post, it's just a beginning where I have just copied the datasheets and the CS42448 example.
So my question is : how should I connect them together into the teensy for them to work both with TDM?
And all recommendations and links to answers or just all knowledge is appreciated
Links to datasheets of the chips:
https://www.ti.com/lit/ds/symlink/p...https%3A%2F%2Fwww.ti.com%2Fproduct%2FPCM3168A
https://www.ti.com/lit/ds/symlink/p...=https%3A%2F%2Fwww.ti.com%2Fproduct%2FPCM1808
https://pdf1.alldatasheet.com/datasheet-pdf/view/119864/CIRRUS/CS42448.html
Here is the schematics from Pauls example: