Today I had a look at the Sum USB keyboard adapter for my Amiga 4000T!

Here you see the analog sound waveform coming out of the DAC at the top in yellow.

I think I’m getting closer……I switched from the I2S DAC to a left-justified DAC just because the LJ one is a little simpler to design around….the MSB for the DATA is lined up with the LRCLK transition……

The digital channels below are the input to the DAC:

D3 is the serial data

D2 is SCLK

D1 is LRCLK

D0 is the MCLK

The identical virus that triggers chickenpox–the varicella zoster disease causes shingles. You could possibly inexplicably build shingles as a person should you had chickenpox being a kid. It’s less unusual following the era of fifty, based on the Stores for Disease Control.

I purchased a CS4334 to eventually use as an Audio DAC for the badge computer. I’ve never worked with DACs before, and my knowledge of audio is somewhat limited.

This audio DAC is a Cirrus Logic CS4334 with datasheet available here.

This chip is the I2S variant, specifically not the LEFT justified or RIGHT justified one. Each variant has slightly different timing requirements. The I2S specification is located here.

In my Series of upgrading to 060 cpu. It is time for the Blizzard 1240.

I got this to have in my “Demo-party” Amiga.

One Blizzard 1240. .(YES it has the 1260 print on the back.  all 040 have that)