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Poor Man’s DDS Board

Poor Man’s DDS Board

Except for the pluggable USB8Bit board, this is among the simplest DDS-type boards which can possibly be built: Basically, it’s just an AVR RISC microcontroller connected to a DA converter.
Features:

8bit DA converter and fast R2R output buffer.

Up to 2MS/s (million samples per second).

Single 5V supply or USB-powered.

3 dedicated user-configurable IO ports (e.g. trigger input, sweep output, AD converter) and a diagnosis LED.

USB connection for waveform download via USB8Bit board.

8kb flash and 512 bytes SRAM, freely programmable 16MHz microcontroller.

USB-powered and externally powered operation.

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