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1. polprog68k (gorplop@pleroma.m68k.church)'s status on Sunday, 08-Dec-2024 00:50:06 JST polprog68k
   4 channel MCP 4922 DAC test board for CH32 (and arduino)
   
   #electronics #ch32 #microcontrollers
   • polprog68k (gorplop@pleroma.m68k.church)'s status on Sunday, 08-Dec-2024 02:23:24 JST polprog68k

     in reply to
     This board will be the DAC part of a YIG oscillator controller. But the 12-bit DAC can do a lot more, so it will likely find a use in other projects. 20MHz SPI clock works out to about ~ 1.5 MHz sample rate but the DAC has a bandwidth of 400kHz. This should be enough to do some radio experiments I am planning.
   • polprog68k (gorplop@pleroma.m68k.church)'s status on Sunday, 08-Dec-2024 06:42:30 JST polprog68k

     in reply to
     argh, i made a routing/schematic mistake and LDAC is connected to SHUTDOWN :cacobite:
     
     Ill have to fix that up with wire later