I am a layman in electronic technology, but I love to do it.
I made a DAC with the antique chip TDA1541. The circuit comes from a combination of various machines. I drew a PCB myself.
Coaxial signal is received by CS8412, filter is SAA7220, and DA chip is TDA1541. The analog output part of the circuit comes from the meridian CD player: CD207. The circuit of the meridian looks very unique.
Generally speaking, I like the sound and feeling of nostalgia.
I don't have more professional knowledge, and my ability is limited to making it work normally.
I want to send the circuit diagram of PDF file, but I don't know how to operate it.
I made a DAC with the antique chip TDA1541. The circuit comes from a combination of various machines. I drew a PCB myself.
Coaxial signal is received by CS8412, filter is SAA7220, and DA chip is TDA1541. The analog output part of the circuit comes from the meridian CD player: CD207. The circuit of the meridian looks very unique.
Generally speaking, I like the sound and feeling of nostalgia.
I don't have more professional knowledge, and my ability is limited to making it work normally.
I want to send the circuit diagram of PDF file, but I don't know how to operate it.
Interesting schematic, thanks for sharing. It looks like you have a common-base stage feeding a current mirror then passive filtering. Its fairly unusual to see LC filtering being used in a DAC output circuit. What are the metal canned opamps being used as output buffers?
Hello, metal canned opamps is LM741CH, and I plan to use OP42 finally.
The original Meridian CD player used 5532 as the output OPAMP.
Because the authentic J511 constant current source cannot be bought, I used a constant current source composed of two transistors to replace the J511.
I have sent more pictures and expect you to talk more about this circuit. Although I may not understand, I'm curious.
Thank you for your reply.
Last edited: